are generally complex-valued. Real-valued orbitals can be formed as linear combinations of mℓ and −mℓ orbitals, and are often labeled using associated harmonic...

'Chime' [1989] Orbital (1991 album) Orbital (1993 album) Orbital (comics), a Franco-Belgian science fiction comics series Orbital piercing Orbitals (video game)...

Switch 2's next hit Orbitals". Eurogamer. Retrieved June 13, 2026. Norman, Jim (June 11, 2026). "Anime Co-Op Platformer 'Orbitals' Finally Picks Up A...

In chemistry, orbital hybridisation (or hybridization) is the concept of mixing atomic orbitals to form new hybrid orbitals (with different energies,...

mechanics, an orbit is the curved trajectory of an object under the influence of an attracting force. Alternatively, it is known as an orbital revolution...

whole, so the atomic orbitals combine to form molecular orbitals. The electrons from the constituent atoms occupy the molecular orbitals. Mathematically,...

approximating the states of bonded electrons – the molecular orbitals – as linear combinations of atomic orbitals (LCAO). These approximations are made by applying...

combination of atomic orbitals (LCAO) is a quantum superposition of atomic orbitals and a technique for calculating molecular orbitals in quantum chemistry...

molecular orbital theory, proposed by Erich Hückel in 1930, is a simple method for calculating molecular orbitals as linear combinations of atomic orbitals. The...

are normally higher in energy than bonding molecular orbitals. Bonding and antibonding orbitals form when atoms combine into molecules. If two hydrogen...

atomic orbitals is fixed and unaffected by the nuclear charge or by the presence of electrons in other orbitals. If that were the case, the 3d-orbital would...

one 3s orbital, three 3p orbitals, and five 3d orbitals, and thus has a capacity of 2×1 + 2×3 + 2×5 = 18. The fourth shell contains one 4s orbital, three...

p-orbitals. The π electrons do not belong to a single bond or atom, but rather to a group of atoms. Molecules containing conjugated systems of orbitals...

axis. One common form of this sort of bonding involves p orbitals themselves, though d orbitals also engage in pi bonding. This latter mode forms part of...

Orbit is the first studio album by English musician William Orbit. While all of his later solo albums are predominantly instrumental, this album consists...

orbitals (also known as Gaussian type orbitals, GTOs or Gaussians) are functions used as atomic orbitals in the linear combination of atomic orbitals...

Wainwright (15 December 1956 – 23 July 2026), known professionally as William Orbit, was an English musician and record producer. With a career spanning four...

covalent chemical bond. They are formed by head-on overlapping between atomic orbitals along the internuclear axis. Sigma bonding is most simply defined for diatomic...

metal ion has nine valence atomic orbitals - consisting of five nd, one (n+1)s, and three (n+1)p orbitals. These orbitals have the appropriate energy to...

Localized molecular orbitals are molecular orbitals which are concentrated in a limited spatial region of a molecule, such as a specific bond or lone...

atomic orbitals combine to form the same number of molecular orbitals, although the electrons involved may be redistributed among the orbitals. This tool...

band originally formed in Salt Lake City, Utah. They released one album, Orbitals in 2003 on Universal Records, before disbanding shortly afterwards. The...

overlapping atomic orbitals can differ. The two types of overlapping orbitals are sigma and pi. Sigma bonds occur when the orbitals of two shared electrons...

such as atoms or molecules Orbital hybridization, a combining of atomic orbitals to form an equal number of hybrid orbitals when forming certain molecules...

(CFT) describes the breaking of degeneracies of electron orbital states, usually d or f orbitals, due to a static electric field produced by a surrounding...

molecular orbitals described at absolute zero. The acronyms stand for highest occupied molecular orbital and lowest unoccupied molecular orbital, respectively...

"natural atomic orbitals" (NAO), "natural hybrid orbitals" (NHO), "natural bonding orbitals" (NBO) and "natural (semi-)localized molecular orbitals" (NLMO)....

groups will rehybridize so that orbitals with more s character are directed towards electropositive groups, and orbitals with more p character will be directed...

In Orbit may refer to: In Orbit (September album) In Orbit (Clark Terry album) In Orbit, an album by The Stomachmouths In Orbit, an album by Sun Araw In...

experimentation; it is the basis for orbital hybridization. As s orbitals are spherical (and have no directionality) and p orbitals are oriented 90° to each other...

Intrinsic bond orbitals (IBO) are localized molecular orbitals giving exact and non-empirical representations of wave functions. They are obtained by...

instance, the n = 1 shell has only orbitals with ℓ = 0 {\displaystyle \ell =0} , and the n = 2 shell has only orbitals with ℓ = 0 {\displaystyle \ell =0}...

of Earth and a tenth that of the Sun. It orbits the Sun at a distance of 5.20 AU (778.5 Gm), with an orbital period of 11.86 years. Jupiter is the third-brightest...

orbitals (STOs) or Slater-type functions (STFs) are functions used as atomic orbitals in the linear combination of atomic orbitals molecular orbital method...

A low Earth orbit (LEO) is an orbit around Earth with a period of 128 minutes or less (making at least 11.25 orbits per day) and an eccentricity less...

valence shell consists of the ns and np orbitals in the outermost electron shell. For transition metals the orbitals of the incomplete (n−1)d subshell are...

The basis set can either be composed of atomic orbitals (yielding the linear combination of atomic orbitals approach), which is the usual choice within the...

spin-orbitals. By invoking the variational method, one can derive a set of N {\displaystyle N} coupled equations for the N {\displaystyle N} spin orbitals...

and a central subject of astronomical research since antiquity. The Sun orbits the Galactic Center at a distance of 24,000 to 28,000 light-years. Its mean...

identical atomic orbitals. When creating the molecule dihydrogen, the individual valence orbitals, 1s, either: merge in phase to get bonding orbitals, where the...

reaction, the symmetry of molecular orbitals with respect to this element must be conserved. That is, molecular orbitals that are symmetric with respect to...

other. A sigma bonding orbital is created between the atomic orbitals with like symmetry. Some orbitals (e.g. px and py orbitals from the fluorine in HF...

there is good overlap between the atomic orbitals of participating atoms. Atomic orbitals (except for s orbitals) have specific directional properties leading...

hydrogen-like atomic orbitals. Hydrogen-like atoms are of importance because their corresponding orbitals bear similarity to the hydrogen atomic orbitals. The definition...

value of 0 is a circular orbit, values between 0 and 1 form an elliptic orbit, 1 is a parabolic (escape orbit or capture orbit), and greater than 1 is...

atomic orbitals are filled in the ground state using the Aufbau principle. Before any two electrons occupy an orbital in a subshell, other orbitals in the...

orbit in Wiktionary, the free dictionary. In physics, an orbit is the gravitationally curved path of one object around a point or another body. Orbit...

The orbital period (also revolution period) is the amount of time a given astronomical object takes to complete one orbit around another object. In astronomy...

Orbit Orbit is the ninth studio album by Italian rapper Caparezza. Anticipated by the single "Io son il viaggio", it was released on 31 October 2025 by...

molecular orbitals (MO) obtained from quantum chemical calculations (DFT for instance), which often provide extensively delocalized orbitals that are hard...

triply degenerate bonding molecular orbitals from each of the 2p orbitals on carbon. The localized sp3 orbitals corresponding to each individual bond...

provides a way to specify atomic ionization states, atomic orbitals, and molecular orbitals. Spectroscopists customarily refer to the spectrum arising...

of 3 and 2 orbitals (for a more in-depth explanation, see crystal field theory): 3 orbitals of low energy: dxy, dxz and dyz and 2 orbitals of high energy:...

a systematic classification of molecular orbitals used to construct multireference wavefunctions. Orbitals are partitioned into three classes—core, active...

the cover art on three of their albums showcase stylised atomic orbitals. Orbital have been critically and commercially successful, known particularly...

to use a single method to indicate orbitals and bonds. In molecular formulas the chemical bonds (binding orbitals) between atoms are indicated in different...

ligand frontier orbitals. Here the ligand field inverts so that the bonding orbitals are more metal-based, and antibonding orbitals more ligand-based...

of frontier orbitals in chemical reactions: specifically that molecules share loosely bonded electrons which occupy the frontier orbitals, that is, the...

from two s-orbitals, an s-orbital and a p-orbital, or two p-orbitals. A pi (π) bond is formed from a side-to-side overlap of two p-orbitals. The pi bond...

block of the periodic table is a set of elements unified by the atomic orbitals their valence electrons or vacancies lie in. The term seems to have been...

at the orbitals. The expected effects for octahedral coordination are given in the following table: w: weak Jahn–Teller effect (t2g orbitals unevenly...

isolated atom occupy atomic orbitals with discrete energy levels. If two atoms come close enough so that their atomic orbitals overlap, the electrons can...

as a circular orbit around an atom, where the number of wavelengths gives the type of atomic orbital (0 for s-orbitals, 1 for p-orbitals and so on). Elementary...

An in-orbit fragmentation (also known as an on-orbit fragmentation) is an event in which an orbiting human-made object releases one or more fragments (space...

formed between one hybridized orbital from each of the carbon atoms. In ethane, the orbitals are sp3-hybridized orbitals, but single bonds formed between...

molecules. In terms of molecular orbital theory these compounds have in common a monocyclic array of molecular orbitals in which there is an odd number...

the valence orbitals in the electron configuration of transition metals consist of five (n−1)d orbitals, one ns orbital, and three np orbitals, where n is...

days) and sidereal day (58.65 Earth days) are in a 3:2 ratio, in a spin–orbit resonance. Consequently, one solar day (sunrise to sunrise) on Mercury lasts...

from 1 to 8 (ns and np orbitals). For transition metals, the number of valence electrons ranges from 3 to 12 (ns and (n−1)d orbitals). For lanthanides and...

3c-2e bonds, taking up three orbitals and two valence electrons. B-B-B bonds are 3c-2e bonds, taking up three orbitals and two valence electrons. B-B...

(DFT), all the occupied molecular orbitals are remixed to get the oxidation state localized orbitals. These orbitals are assigned to one of the fragments...

angular nodes present in an orbital. For example, for p orbitals, ℓ = 1 and thus the amount of angular nodes in a p orbital is 1. The magnetic quantum...

The International Space Station (ISS) is a space station in low Earth orbit (LEO). It is the product of the International Space Station program and is...

Orbital inclination measures the tilt of an object's orbit around a celestial body. It is expressed as the angle between a reference plane and the orbital...

Earth orbits the Sun at an average distance of 149.60 million km (92.96 million mi), or 8.317 light-minutes, in a counterclockwise direction as viewed...

Willis Lamb, is an anomalous difference in energy between two electron orbitals in a hydrogen atom. The difference was not predicted by theory and it cannot...

In conrotatory mode, both atomic orbitals of the end groups turn in the same direction (such as both atomic orbitals rotating clockwise or counter-clockwise)...

perpendicular to its orbital plane around the Sun, producing seasons. Earth is orbited by one permanent natural satellite, the Moon, which orbits Earth at 384...

A geostationary orbit, also referred to as a GEO or GSO, is a circular geosynchronous orbit 35,786 km (22,236 mi) in altitude above Earth's equator, 42...

less than a third of its mass. Saturn orbits the Sun at a distance of 9.59 AU (1,434 million km), with an orbital period of 29.45 years. Saturn's interior...

According to molecular orbital theory, the electron configuration of triplet oxygen has two electrons occupying two π molecular orbitals (MOs) of equal energy...

was thought to utilize vacant d atomic orbitals in addition to its valence s and p orbitals to form hybrid orbitals. For example, phosphorus in PCl 5 was...

combinations of either atomic orbitals, delocalized atomic orbitals (Coulson-Fischer theory), or even molecular orbital fragments. Although this is often...

the negative charges of the other. The occupied orbitals of one molecule and the unoccupied orbitals of the other (especially the HOMO and LUMO) interact...

molecules. It uses doubly occupied molecular orbitals as far as possible and then singly occupied orbitals for the unpaired electrons. This is the simple...

shell with a specific number of sub shells, each with a specific number of orbitals. Roughly speaking, the principle quantum number n {\displaystyle n} describes...

σ*(C–H). For donating orbitals, the nonbonding orbitals, or the lone pairs, are generally more effective than bonding orbitals due to the high energy...

debris) are defunct human-made objects in space – principally in Earth orbit – which no longer serve a useful function. These include derelict spacecraft...

their name refers to d orbitals, since the orbital symmetry of the δ bond is the same as that of the usual (4-lobed) type of d orbital when seen down the...

orbital (e.g. C–H or C–C) with an adjacent unpopulated non-bonding p or antibonding σ* or π* orbitals to give a pair of extended molecular orbitals....

the orbitals 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d and 7p are assumed to be filled, with the remaining orbitals unfilled...

Hartree–Fock theory uses different molecular orbitals for the α and β electrons. This has been called a different orbitals for different spins (DODS) method. The...

Reflect Orbital, Inc is an American privately held space technology company headquartered in Hawthorne, California. Founded in 2021, the company designs...

The orbit of the Moon is, while stable and known, highly complex, and as such still studied by lunar theory. Most models describe the Moon's orbit geocentrically...

hybridized in which the 2s atomic orbital and the three 2p orbitals of oxygen are hybridized to form four new hybridized orbitals which then participate in bonding...

p and one d orbitals, or six bonds by using one s, three p and two d orbitals. To form five bonds, the one s, three p and one d orbitals combine to form...

n {\displaystyle n} primitive Gaussian-type orbitals (GTOs) that are fitted to single Slater-type orbitals (STOs). They were first proposed by John Pople...

energy levels and atomic orbitals involved in the model. This can lead to complicated band structures because the orbitals belong to different point-group...

Earth orbit may refer to: Earth's orbit, the orbit of the Earth around the Sun Geocentric orbit, an orbit around the Earth Geostationary orbit Geosynchronous...

a large, rounded astronomical body that is generally required to be in orbit around a star, stellar remnant, or brown dwarf, and is not one itself. The...

orbitals are not varied but the expansion of the wave function is) and Hartree–Fock (where there is only one determinant, but the molecular orbitals are...

interactions between the highest occupied molecular orbitals and lowest unoccupied molecular orbitals, and thereby stabilize the HOMOs and destabilize the...

which the dz2 and the dx2−y2 orbitals are degenerate and higher in energy than the degenerate set of dxy, dxz and dyz orbitals. When the two axial ligands...

orbital to another. In complexes of the transition metals the d orbitals do not all have the same energy. The pattern of splitting of the d orbitals can...

The Space Shuttle is a retired, partially reusable low Earth orbital spacecraft system operated from 1981 to 2011 by the U.S. National Aeronautics and...

vertebrate anatomy, the orbit is the cavity or socket/hole of the skull in which the eye and its appendages are situated. "Orbit" can refer to the bony...

A geocentric orbit, Earth-centered orbit, or Earth orbit involves any object orbiting Earth, such as the Moon or artificial satellites. In 1997, NASA estimated...

between an orbital and components of a Lewis structure is often not straightforward. Nevertheless, occupied non-bonding orbitals (or orbitals of mostly...

Hill sphere, its orbital and co-orbital space extend along Earth's orbital path. This space is co-populated by groups of co-orbital Near-Earth Objects...

more "molecular" orbitals that are not really on the molecule of interest will appear, and care must be taken not to use these orbitals for estimating electron...

complex such as d6-ML6, the d2sp3 hybrid orbitals are affected. Furthermore, the t2g nonbonding metal orbitals are unaltered. The isolobal analogy has...

electrons in singly occupied orbitals are less effectively screened or shielded from the nucleus, so that such orbitals contract and electron–nucleus...

Two-dimensional structures of solids behave because of the overlap of atomic orbitals. The simplest two-dimensional crystal contains identical atoms arranged...

Neptune is the eighth and farthest known planet orbiting the Sun. It is the fourth-largest planet in the Solar System by diameter, the third-most-massive...

skeletal orbitals, 2n + 4 skeletal electrons n-vertex arachno: n + 3 skeletal orbitals, 2n + 6 skeletal electrons n-vertex hypho: n + 4 skeletal orbitals, 2n...

elliptical orbit or eccentric orbit is an orbit with an eccentricity of less than 1;[citation needed] this includes the special case of a circular orbit, with...

interacting frontier orbitals are the allyl free radical and the hydrogen 1s orbitals. The suprafacial shift is symmetry-forbidden because orbitals with opposite...

ring of bodies beyond the orbit of Neptune. It is the ninth-largest and tenth-most-massive known object to directly orbit the Sun. It is the largest...

axis) with the p orbitals of the peripheral atoms. This exercise generates the diagram at right (Figure 1). Three molecular orbitals result from the combination...

Orbital is a 2023 novel by English novelist Samantha Harvey that incorporates elements of science fiction, literary fiction, and philosophical fiction...

distance to the nucleus). Although the resulting energy eigenfunctions (the orbitals) are not necessarily isotropic themselves, their dependence on the angular...

double bond that results from the filling of molecular orbitals formed from the atomic orbitals of the individual oxygen atoms, the filling of which results...

Martian orbit may refer to: the orbit of Mars around the Sun an areocentric orbit, orbit of an object around Mars an areostationary orbit an areosynchronous...

In mathematics, the orbit method (also known as the Kirillov theory, the method of coadjoint orbits and by a few similar names) establishes a correspondence...

relativistic contraction of the 1s orbital (and other orbitals with electron density close to the nucleus, especially ns and np orbitals). Hence this causes a cascade...

pair in a molecule. The orbitals for each electron pair are expanded in terms of the full basis set and are non-orthogonal. Orbitals from different pairs...

system of p orbitals (usually on sp2-hybridized atoms, but sometimes sp-hybridized); the molecule must be (close to) planar (p orbitals must be roughly...

runs over the total N spin orbitals. In the closed-shell case, it can be simplified by considering only the spatial orbitals by noting that the J ^ {\displaystyle...

overlap of atomic p-orbitals above and below the plane of the ring. The following diagram shows the positions of these p-orbitals: Because they are out...

spaceflight, a lunar orbit (also known as a selenocentric orbit) is an orbit by an object around Earth's Moon. In general these orbits are not circular....

between the Re–Cl bonds. The d orbitals directed along the Re–Cl bonds are stabilized by interaction with chloride ligand orbitals and do not contribute to...

these electrons tend to reside in orbitals that are too low-lying to allow for efficient backbonding to the π* orbital. In particular, backbonding has been...

Thus the s, p, d, and f subshells contain 1, 3, 5, and 7 orbitals each. Each of these orbitals can accommodate up to two electrons (with opposite spins)...

Kepler orbit. There are many different ways to mathematically describe the same orbit, but certain schemes are commonly used in astronomy and orbital mechanics...

spin-orbitals associated with the configuration. For example, given the 1 s {\displaystyle 1s} orbital in an atom we know that there are two spin-orbitals...

X-ray notation is a method of labeling atomic orbitals that grew out of X-ray science. Also known as IUPAC notation, it was adopted by the International...

System is the gravitationally bound system of the Sun and the masses that orbit it, most prominently its eight planets, of which Earth is one. The Solar...

solid-state and condensed matter physics, the so-called atomic orbitals, or spin-orbitals, as they appear in textbooks on quantum physics, are often partially...

molecular orbital theory, the main alternative to valence bond theory, the molecular orbitals (MOs) are approximated as sums of all the atomic orbitals (AOs)...

Orbit Culture is a Swedish melodic death metal band from Eksjö, formed in 2013. The band includes vocalist and rhythm guitarist Niklas Karlsson, lead...

A geosynchronous orbit (sometimes abbreviated GEO) is an Earth-centered orbit with an orbital period that matches Earth's rotation on its axis, 23 hours...

Hund's rule asserts that if multiple orbitals of the same energy are available, electrons will occupy different orbitals singly and with the same spin before...

contraction) is a term used in chemistry to describe the effect of having full d orbitals on the period 4 elements. The elements in question are gallium, germanium...

in bond angle. Only valence orbitals are considered. However, one should keep in mind that some of the valence orbitals are often unoccupied. In preparing...

discussion regarding its effects on astronomy and orbital congestion. Constellations of low Earth orbit (LEO) satellites were first conceptualized in the...

Near Orbit is a 1989 role-playing game supplement published by R. Talsorian Games for Cyberpunk. Near Orbit is a supplement that introduces rules for adventuring...

electrons in frontier molecular orbitals has stimulated discussions on the interpretation of the concept of orbitals itself. The present understanding...

artificial satellite is an object, typically a spacecraft, placed into orbit around a celestial body. They have a variety of uses, including communication...

in terms of orbital hybridization. In the case of acetylene, each carbon atom has two sp-orbitals and two p-orbitals. The two sp-orbitals are linear,...

A Molniya orbit (Russian: Молния, IPA: [ˈmoɫnʲɪjə] , "Lightning") is a type of satellite orbit designed to provide communications and remote sensing coverage...

since the unpaired electron occupies a valence p orbital or an sp, sp2 or sp3 hybrid orbital. These orbitals are strongly directional and therefore overlap...

order hybridization is an extension of orbital hybridization, the mixing of atomic orbitals into hybrid orbitals which can form chemical bonds, to include...

light. Just like how two adjacent p-orbitals in a molecule will form a pi-bond, three or more adjacent p-orbitals in a molecule can form a conjugated...

Look up orbiter in Wiktionary, the free dictionary. An orbiter is a type of spacecraft. Orbiter may also refer to: Space Shuttle orbiter, the main component...

interaction between molecular orbitals. Anti-periplanar geometry will put a bonding orbital and an anti-bonding orbital approximately parallel to each...

the orbital speed of an astronomical body or object (e.g. planet, moon, artificial satellite, spacecraft, or star) is the speed at which it orbits around...

course of a reaction and begin to interact, as their associated molecular orbitals begin to overlap with each other and atoms bearing partial charges begin...

shows the orbitals available to π-electrons. The molecular orbitals are built from an empty p-orbital on the central carbon atom and two orbitals on the...

degree interaction of Mn-O-Mn in which the Mn "eg" orbitals are directly interacting with the O "2p" orbitals, and one of the Mn ions has more electrons than...

two-electron bonds using sp3d2 hybrid atomic orbitals, which combine one s, three p and two d orbitals. However more recently, quantum-mechanical calculations...

Orbital velocity may refer to the following: The orbital angular velocity The orbital speed of a revolving body in a gravitational field. The velocity...

except single-stage-to-orbit vehicles cannot get into space on their own, and require a launch vehicle (carrier rocket). On a sub-orbital spaceflight, a space...

ns orbital – which is placed above (n − 1)d in the representation of atomic orbitals (AOs) – is used in a linear combination with the ligand orbitals, forming...

product of spin-orbitals is always lower than the electron-electron repulsive energy on the simple Hartree product of the same spin-orbitals. Since exchange...

or more atomic orbitals. In 1913, Niels Bohr proposed a model of the atom, giving the arrangement of electrons in their sequential orbits. At that time...

metal ion, the ligands modify the difference in energy Δ between the d orbitals, called the ligand-field splitting parameter in ligand field theory, or...

s and p3 orbitals combine to produce four hybrid orbitals. In another configuration, known as trigonal configuration, one of the p-orbitals (say pz) remains...

and walked on the lunar surface, while Michael Collins remained in lunar orbit in the command and service module (CSM), and all three landed safely on...

between s and p molecular orbitals of the donor-atoms in the ligands and the d orbitals of the metal ions. The s, p, and d orbitals of the metal can accommodate...

velocity to go into low Earth orbit, and then de-orbit before completing their first full orbit, are not considered sub-orbital. Examples of this include...

gravitational orbit classified by various characteristics. The following is a list of types of orbits: Galactocentric orbit: An orbit about the center...

theory. An approximation that does not vary the orbitals is Harris functional theory. The Kohn–Sham orbital energies εi, in general, have little physical...

pi orbitals, the extended method also includes the sigma orbitals. The extended Hückel method can be used for determining the molecular orbitals, but...

bonds because p-orbital overlap is maximized. 2 sp2 orbitals (total of 3 such orbitals) approach to form a sp2-sp2 sigma bond Two p-orbitals overlap to form...

Orbit, also sold in some markets as Extra, Freedent or Yida, is a brand of sugarless chewing gum from the Wrigley Company. In the United States, where...

p orbitals and therefore less likely to be involved in bonding. If the total ionization energies (IE) (see below) of the two electrons in s orbitals (the...

wavefunctions constructed as Slater determinants of orthonormal orbitals in terms of the individual orbitals. In doing so, the original integrals involving N-electron...

applies to closed-shell molecules or atoms where all molecular orbitals or atomic orbitals, respectively, are doubly occupied. This is generally called...

organisms to create a hybrid Orbital hybridization, in chemistry, the mixing of atomic orbitals into new hybrid orbitals Nucleic acid hybridization, the...

astronomy and astrodynamics the osculating orbit of an object in space at a given moment in time is the orbit it would have around its central body if perturbations...

occupancy of oxygen's two antibonding πg-orbitals, which are degenerate (equal in energy). These two orbitals are classified as antibonding and are of...

transformation of the occupied molecular orbitals; different localization procedures yield either of the two. Two equivalent orbitals h and h' can be constructed by...

nearest point in the orbit of a planetary body about its primary body. The line of apsides (also called apse line, or major axis of the orbit) is the line connecting...

their name refers to f orbitals, since the orbital symmetry of the φ bond is the same as that of the usual (6-lobed) type of f orbital when seen down the...

bonding character. Molecular orbitals with an antinode between nuclei are very stable and are known as "bonding orbitals", which strengthen the bond....

A fixed orbit is the concept, in atomic physics, where an electron is considered to remain in a specific orbit, at a fixed distance from an atom's nucleus...

[ˈmʲir]; lit. 'peace' or 'world') was a space station operated in low Earth orbit from 1986 to 2001, first by the Soviet Union and later by the Russian Federation...

Telesto and Calypso. Another Saturn moon, Dione also has two Lagrange co-orbitals, Helene at its L4 point and Polydeuces at L5. The moons wander azimuthally...

Phosphines accept electron density from metal p or d orbitals into combinations of P–C σ* antibonding orbitals that have π symmetry. When phosphines bond to...

Texas. The company operates three divisions: "Space", which conducts more orbital launches annually than any other launch provider, including national programs;...

Orbital ATK Inc. was an American aerospace manufacturer and defense industry company. It was formed in February 9, 2015, from the merger of Orbital Sciences...

Culture's citizens do not live on planets but in artificial habitats such as orbitals and ships, the largest of which are home to billions of individuals. The...

mechanics. The current picture of the hydrogen atom is based on the atomic orbitals of wave mechanics, which Erwin Schrödinger developed in 1926. However,...

orbits (GEO), 10 in 55° inclined geosynchronous orbits (IGSO) and 27 in Medium Earth orbits (MEO). Furthermore, 8 satellites (4 in Medium Earth orbit...

arbitrary since these are just basis set orbitals and do not correspond to any molecular orbital. If any orbital were to change signs, two plus–minus overlaps...

diagrams, which track the evolution of the molecular orbitals (known as 'correlating' the molecular orbitals) of the reacting molecules as they progress from...

2013-10-23. "2.2.3 Negative Hyperconjugation for Ebooksclub.org Molecular Orbitals and Organic Chemical Reactions Student Edition". Scribd.com. 2011-04-29...

mechanics, orbital resonance occurs when orbiting bodies exert regular, periodic gravitational influence on each other, usually because their orbital periods...

A Sun-synchronous orbit (SSO), also called a heliosynchronous orbit, is a nearly polar orbit around a planet, in which the satellite passes over any given...

brightest "morning star" or "evening star". Venus orbits closer to the Sun than the Earth does. The orbits of Venus and Earth make the two planets approach...

Virgin Orbit was a company within the Virgin Group that provided launch services for small satellites. The company was formed in 2017 as a spin-off of...

In quantum mechanics, the spin–orbit interaction (also called spin–orbit effect or spin–orbit coupling) is a relativistic interaction of a particle's spin...

between half-filled orbitals usually gives strong antiferromagnetic exchange, whereas near-90° geometries or orthogonal orbitals can weaken the antiferromagnetic...

proton and the electron (i) start from different orbitals and (ii) are transferred to different atomic orbitals. They transfer in a concerted elementary step...

spectroscopic notation pattern, molecular orbitals are designated by a lower case Greek letter: for λ = 0, 1, 2, 3,... orbitals are called σ, π, δ, φ... respectively...

symmetry is invariant to any rotation. Linear combination of atomic orbitals (molecular orbital method) Raman spectroscopy Vibrational spectroscopy (molecular...

period of 17 hours and 14 minutes. This means that in an 84-Earth-year orbital period around the Sun, its poles get around 42 years of continuous sunlight...

containing a cabin for two astronauts and a small engine to return them to lunar orbit. After a three-day transit, Armstrong and Aldrin descended to the surface...

Orbiter is a space flight simulator video game developed to simulate spaceflight using realistic Newtonian physics. The game was released on 27 November...

graveyard orbit, also called a junk orbit or disposal orbit, is an orbit that lies away from common operational orbits. One significant graveyard orbit is a...

or a kinetic orbital strike is the hypothetical act of attacking a planetary surface with an inert kinetic projectile from orbit (orbital bombardment)...

Halo orbit A halo orbit is a periodic, non-planar orbit associated with one of the L1, L2 or L3 Lagrange points in the three-body problem of orbital mechanics...

analysis through the frontier-orbital method: the sigma bond in the reactant will open in such a way that the resulting p-orbitals will have the same symmetry...

accurately transform molecular orbitals into localized equivalent orbitals. 1950 Paper completely defines molecular orbitals as eigenfunctions of the SCF...

and its orbital axis, which is the line perpendicular to its orbital plane; equivalently, it is the angle between its equatorial plane and orbital plane...

Terrestrial orbit may refer to: the orbit of the Earth around the Sun a geocentric orbit, orbit of an object around the Earth a geosynchronous orbit a geostationary...

orbits around Earth at an average distance of 384,399 kilometers (238,854 mi), a distance roughly 30 times the width of Earth. It completes an orbit (lunar...

Orbital mechanics , astrodynamics or space dynamics is the application of ballistics and celestial mechanics to rockets, satellites, and other spacecraft...

An orbital spaceflight (or orbital flight) is a spaceflight in which a spacecraft is placed on a trajectory where it could remain in space for at least...

electron density, with the orbitals related by a unitary transformation. We can construct the two equivalent bent bond orbitals h and h' by taking linear...

dwarf planet in the outermost reaches of the Solar System, orbiting the Sun far beyond the orbit of Neptune. It was discovered in 2003, and is roughly 1...

In the periodic table, the first fourteen (up to ytterbium) fill the 4f orbitals. Lutetium (element 71) is also often considered a lanthanide, despite being...

Pekka Pyykkö referred to such orbitals as primogenic instead. Such orbitals are much smaller than all other orbitals with the same ℓ and have no radial...

An orbital node is either of the two points where an orbiting object intersects a plane of reference inclined with respect to the orbital plane. A non-inclined...

molecular orbital diagram. In the standard Diels–Alder, the electron rich diene has molecular orbitals that are higher in energy than the orbitals of the...

no obstacle to placing nuclei closer than normally allowed by electron orbitals limited by normal matter. Eddington wondered what would happen when this...

the peculiar clustering of orbits for a group of extreme trans-Neptunian objects (ETNOs)—bodies beyond Neptune that orbit the Sun at distances averaging...

of a body in an orbit is given by L = 2 π M f r 2 {\displaystyle L=2\pi Mfr^{2}} where M {\displaystyle M} is the mass of the orbiting object, f {\displaystyle...

by the number of spin orbitals that are swapped with virtual orbitals from the Hartree–Fock determinant. If only one spin orbital differs, we describe...

leader Quellcrist Falconer. Harlan's World is surrounded by automated "orbitals" which target flying objects, such as vehicles, with high-energy beam weapons...

from its pi-bonding orbital into the metal center's empty d orbital while also accepting electrons from the metal's filled d orbitals into its empty pi...

orbital flight. NASA's first orbital spaceflight was conducted by John Glenn on February 20, 1962, in the Friendship 7, completing three full orbits before...

mechanics, orbital precession may refer to: Apsidal precession, where the major axis of an elliptical orbit cycles its orientation within its orbital plane...

If Δ is large, then the lower energy orbitals are completely filled before population of the higher orbitals according to the Aufbau principle. Complexes...

In celestial mechanics, a Kepler orbit (or Keplerian orbit, named after the German astronomer Johannes Kepler) is the motion of one body relative to another...

ligand 𝝅 orbitals. 3e2g (HOMO-1) and 3e1g (HOMO-2) molecular orbitals are 𝞭-bonding interactions between metal 3d𝞭 and ligand 𝝅 orbitals. The highest...

spacecraft such as satellites in orbit around Earth, but also includes space probes for flights beyond Earth orbit. Such spaceflights operate either...

t ϕ ( x ) {\displaystyle u(x,t)=e^{-i\omega t}\phi (x)} is said to be orbitally stable if any solution with the initial data sufficiently close to ϕ (...

the values visited or approached asymptotically (fixed points, periodic orbits, or chaotic attractors) of a system as a function of a bifurcation parameter...

Orbital decay is a gradual decrease of the distance between two orbiting bodies at their closest approach (the periapsis) over many orbital periods. These...

TransOrbital is a California-based company which became the first private company granted permission by the U.S. government to explore, photograph, and...

atomic orbitals form three molecular orbitals: one bonding, one non-bonding, and one anti-bonding. The two electrons go into the bonding orbital, resulting...

introduction of Gaussian orbitals into ab initio quantum chemistry. Almost all basis sets used in computational chemistry now employ these orbitals. Frank Boys was...

(e.g., HSE06, B3LYP) functionals have been implemented. The resulting orbitals can be used within the framework of many-body perturbation theory, such...

in orbit: 2001 Mars Odyssey, Mars Express, Mars Reconnaissance Orbiter, MAVEN, ExoMars Trace Gas Orbiter, the Hope orbiter, and the Tianwen-1 orbiter. Another...

became the first rocket to land propulsively after delivering a payload into orbit. This reusability results in significantly reduced launch costs, as the...

A year is a unit of time based on how long it takes the Earth to orbit the Sun. In scientific use, the tropical year (approximately 365 solar days, 5...

between different orbitals by the emission or absorption of photons with an energy that matches the difference in potential between the orbitals. Other methods...

Laboratory by McMillan, Wahl, and Zachariasen indicated that 5f orbitals, rather than 6d orbitals, were being filled. However, these studies could not unambiguously...

Orbit Group is a housing group providing affordable housing to around 47,000 households in England, mainly in the Midlands, East Anglia and the south...

D-Orbit (as in de-orbit) is a private aerospace company, headquartered in Italy. D-Orbit is mainly active in private spaceflight and space tug services...

(March 2021). "Using Mars co-orbitals to estimate the importance of rotation-induced YORP break-up events in Earth co-orbital space". Monthly Notices of...

The Orbit Room was a live music venue and bar located at 580A College Street in Toronto, Ontario. Co‑founded in 1994 by music promoter Tim Notter and...

inferior or interior with respect to another planet if its orbit lies inside the other planet's orbit around the Sun. In this situation, the latter planet is...

the hydrogen molecule for atomic orbitals and the hydrogen radical (i.e. with only one electron) for molecular orbitals can be found in the book of Müller-Kirsten...

of a constant magnetic field, undergoing cyclotron motion on a circular orbit is another important example of an accidental symmetry. The symmetry multiplets...

A circular orbit is an orbit with a fixed distance around the barycenter; that is, in the shape of a circle. In this case, not only the distance, but...

Ceres is a dwarf planet in the main asteroid belt between the orbits of Mars and Jupiter. It was the first object identified in the asteroid belt, discovered...

company Semi-automatic train operation Slater-type orbital, atomic orbitals STO-nG basis sets, of orbitals Space Tornado Ogawa, a professional wrestling throw...

planets. The orbits of planets and moons in the solar system often align with the orientation of the host star/planet they orbit. Assuming the orbit of a planet...

In mathematics, specifically in the study of dynamical systems, an orbit is a collection of points related by the evolution function of the dynamical...

The orbital module is a compartment of some space capsules used only in orbit. It is separated from the crewed reentry capsule before reentry. The orbital...

for f-electrons because f (especially 4f) orbitals are radially contracted and overlap only weakly with orbitals of adjacent atoms. Consequently, the lanthanide...

ODERACS-2 (Orbital Debris Radar Calibration Sphere 2) was a series of six spheres deployed from the shuttle mission STS-63, ODERACS-2A through -2. The...

January 2023[update], all known co-orbitals of Venus have orbits with high eccentricity, also crossing Earth's orbit. In 1961, the IAU defined meteoroids...

commercial communications satellite and study Halley's Comet while they were in orbit, in addition to taking schoolteacher Christa McAuliffe into space under...

electrons in similar orbitals, unpaired, and with all degenerate orbitals half-filled, (and the most stable is) a filled set of orbitals. To achieve one of...

system, an orbital can be considered as the stationary state of an individual electron in the system. In chemistry, calculation of molecular orbitals typically...

In mathematics, an orbital integral is an integral transform that generalizes the spherical mean operator to homogeneous spaces. Instead of integrating...

Orbit College is a South African football club based in the North West province. The club earned promotion to the 2025–26 South African Premiership after...

Ray–Dutt twist. For a free ion, e.g. gaseous Ni2+ or Mo0, the energy of the d-orbitals are equal in energy; that is, they are "degenerate". In an octahedral complex...

A polar orbit is one in which a satellite passes above or nearly above both poles of the body being orbited (usually a planet such as the Earth, but possibly...

spin-orbitals. For an open-shell system, the mean-field approach of Hartree–Fock theory gives rise to different equations for the α and β orbitals. Consequently...

Saturn. It shares the same orbit with Janus—the only known example of co-orbitals in the Solar System. In 1980, three additional Saturnian moons were discovered...

adopting sp orbital hybridisation on both atoms, featuring one σ bond (between one sp orbital on each atom) and one π bond (between aligned p orbitals on each...

inferior or orbital surface of the frontal lobe is concave, and rests on the orbital plate of the frontal bone. It is divided into four orbital gyri by a...

The Solar Orbiter (SolO) is a Sun-observing probe developed by the European Space Agency (ESA) with a NASA contribution. Solar Orbiter, designed to obtain...

of these orbitals differs depending on the “sub-season” chosen at the game’s beginning, which include: Spring: This option makes the orbitals appear as...

The Mars Climate Orbiter (formerly the Mars Surveyor '98 Orbiter) was a robotic space probe launched by NASA on December 11, 1998, to study the Martian...

In spaceflight an orbit insertion is an orbital maneuver which adjusts a spacecraft’s trajectory, allowing entry into an orbit around a planet, moon, or...

zygomatic bone and the maxilla, on which it separates the anterior and the orbital surface of the body of the maxilla. It is an attachment for the levator...

commercial success. In the space age, the Jetsons are a family residing in Orbit City. The city's architecture is rendered in the Googie style and all homes...

Jupiter orbiting the star HD 222582. The orbital period is 572 days and orbits at a semimajor axis of 1.35 AU in one of the most eccentric orbits of the...

data centers or orbital AI infrastructure are proposed concepts to build AI data centers in the sun-synchronous orbit or other orbits using space-based...

Wiswesser rule, a mathematical formula that predicts the order of atomic orbitals in many-electron atoms. Wiswesser was born in Reading, Pennsylvania, to...

function, 1930: Slater type orbitals (STOs) and atomic shielding constants, 1931: linear combination of atomic orbitals, van der Waals forces (with Jack...

In orbital mechanics, a frozen orbit is an orbit for an artificial satellite in which perturbations have been minimized by careful selection of the orbital...

nucleus have also been proposed in which nucleons occupy orbitals, much like the atomic orbitals in atomic physics theory. These wave models imagine nucleons...

electrons in odd orbitals (with ℓ {\displaystyle \ell } odd) contribute to the total parity: an odd number of electrons in odd orbitals (those with an odd...

The Orbital Children (Japanese: 地球外少年少女, Hepburn: Chikyūgai Shōnen Shōjo; transl. "Extraterrestrial Boys and Girls") is a Japanese science fiction anime...

Venusian orbit may refer to: the orbit of Venus around the Sun a cytherocentric orbit, orbit of an object around Venus Terrestrial orbit (disambiguation)...

theory which predicts the tetrahedral symmetry of four sp3 hybridised orbitals. The most common actual angles are 105°, 107°, and 109°: they vary because...

astronomy, Kepler's laws of planetary motion give good approximations for the orbits of planets around the Sun. They were published by Johannes Kepler from 1609...

Venture Orbital Systems) is a French start-up based in Reims. It is developing the Zephyr Launcher and its 3D-printed engine, Navier, to offer orbital launch...

An orbital ring is a concept of an artificial ring placed around a body and set rotating at such a rate that the apparent centrifugal force is large enough...

ligands, the d-orbitals can expand slightly. The second is the act of overlapping with ligand orbitals and forming covalent bonds increases orbital size, because...

a Modern Style is the sixth album by electronic instrumentalist William Orbit. He is credited as arranger, programmer, producer, and performer of the...

the lowest energy orbitals are the π bonding orbitals followed by the σ bonding orbital. The next highest are the δ bonding orbitals which represent the...

almost 7 years in transit and 13 years orbiting Saturn, studying the planet and its system after entering orbit on July 1, 2004. The voyage to Saturn included...

pterygopalatine fossa. It passes through the inferior orbital fissure to enter the orbit. It travels through the orbit, then enters and traverses the infraorbital...

calculation can now consider ("frozen orbitals") or neglect ("no hole") the effect of the electron vacancy; the frozen-orbitals approximation is considered generally...

cyclopropane molecular orbitals of the norcaradiene cyclopropane ring. Electronic rationalization for stabilization of the Walsh orbitals is possible for both...

arise from the overlap of four d-orbitals on each metal with the same orbitals on the other metal: the dz2 orbitals overlap to give a sigma bonding component...

System, centered on the Sun and roughly spanning the space between the orbits of the planets Jupiter and Mars. It contains a great many solid, irregularly...

Orbital welding is a specialized area of arc welding whereby the arc is rotated mechanically through 360° (180° in double up welding) around a static...

This in turn leads to contraction of the atomic orbitals, most specifically the s and p1/2 orbitals. Their electrons become more closely attached to...

orbiting the K-type giant star Epsilon Tauri approximately 146 light-years (45 parsecs) away from the Earth in the constellation of Taurus. It orbits...

an orbit with a semimajor axis of 1.524 astronomical units (228 million km) (12.673 light minutes), and an eccentricity of 0.0934. The planet orbits the...

and provides data for all known asteroids and several comets, including orbital parameters and diagrams, physical diagrams, close approach details, radar...

particularly those based on the linear combination of atomic orbitals molecular orbital method, and are routinely used as variables in linear regression...

orbits. For a chaotic system to have dense periodic orbits means that every point in the space is approached arbitrarily closely by periodic orbits....

radar operating in outer space; orbiting radar is a radar in orbit and Earth orbiting radar is a radar in geocentric orbit. A number of Earth-observing satellites...

inferior or orbital surface of the frontal lobe is concave, and rests on the orbital plate of the frontal bone. It is divided into four orbital gyri by a...

primary data for this and other partial lists is based on JPL's "Small-Body Orbital Elements" and data available from the Minor Planet Center. Critical list...

primary data for this and other partial lists is based on JPL's "Small-Body Orbital Elements" and data available from the Minor Planet Center. Critical list...

successive recurrences of the same phase: due to the eccentricity of the Moon's orbit, this duration is not perfectly constant but averages about 29.5 days. The...

brothers (the other being Phil Hartnoll) who make up the electronic dance act Orbital. Hartnoll played in a local band during the mid-1980s, Noddy and the Satellites...

The M25 or London Orbital Motorway is a major ring road encircling most of Greater London. The 117-mile-long (188 km) motorway is one of the most important...

A circle route (also circumference, loop, ring route, ring line or orbital line) is a public transport route that follows a path approximating a circle...

natural satellite is, in the most common usage, an astronomical body that orbits a planet, dwarf planet, or small Solar System body (or sometimes another...

The Astro Orbiter is a "rocket-spinner", aerial carousel-type attraction featured at five Disneyland-style parks and Walt Disney Resorts around the world...

primarily to negative hyperconjugation between oxygen p orbitals and silicon–carbon σ* antibonding orbitals, p(O) → σ*(Si􏰉−R), a form of π backbonding. A secondary...

electron density in bonding orbitals towards the α-carbon (and the opposite for the corresponding anti-bonding orbitals) indicates the polarized bond...

The maxilla consists of: The body of the maxilla: pyramid-shaped; has an orbital, a nasal, an infratemporal, and a facial surface; contains the maxillary...

landers to the Moon, Venus, and Mars, and human spaceflight in low Earth orbit and ultimately to the Moon. Public interest in space travel originated in...

photoelectron spectroscopy to be primarily due to mixing of uranium 6d orbitals into ligand pi orbitals and therefore donation of electronic charge to the uranium...

Their π-acidity arises from overlap of P-C σ* anti-bonding orbitals with filled metal orbitals. Aryl- and fluorophosphines are stronger π-acceptors than...

Electron orbital imaging is an X-ray synchrotron technique used to produce images of electron (or hole) orbitals in real space. It utilizes the technique...

electrons in the simple structure. Molecular orbitals then take linear combinations of atomic orbitals (LCAOs) to explain the distribution of electrons...

observed to possess two possible discrete angular momenta despite having no orbital angular momentum. The relativistic spin–statistics theorem connects electron...

orbit, of the temporal fossa and the infratemporal fossa. It presents a malar and a temporal surface; four processes (the frontosphenoidal, orbital,...

Orbits is a public art work by Russian-American artist Alexander Liberman located at the Lynden Sculpture Garden near Milwaukee, Wisconsin. The sculpture...

Breitling Orbiter was the name of three different Rozière balloons made by the Bristol-based balloon manufacturer Cameron Balloons to circumnavigate the...

Final Orbit is a 2025 alternate history, thriller novel by Canadian retired astronaut and writer Chris Hadfield. It was first published in October 2025...

primary data for this and other partial lists is based on JPL's "Small-Body Orbital Elements" and data available from the Minor Planet Center. Critical list...

is neither a planet nor an identified comet—that orbits within the inner Solar System or is co-orbital with Jupiter (Trojan asteroids). Asteroids are rocky...

primary data for this and other partial lists is based on JPL's "Small-Body Orbital Elements" and data available from the Minor Planet Center. Critical list...

are missing their bonding partners on one side, their orbitals have less overlap with the orbitals of neighboring atoms. The splitting and shifting of energy...

representation of the 2p orbitals, the spin-1 representation of the components of r, and the spin-2 representation of the 4d orbitals. This direct product...

semi-sentient Gorax and Wistie species. The Endor solar cycle is 402 GSC days orbital, with a breathable earth-like atmosphere hospitable to humans, 85% Standard...

through the inferior orbital fissure to enter the orbit, then passes forward along the floor of the orbit, finally exiting the orbit through the infraorbital...

Orbit Books is an international publisher that specialises in science fiction and fantasy books. It is a division of Hachette Book Group, owned by Lagardère...

Orbital Insight is a Palo Alto, California-based geospatial analytics company. The company analyzes satellite, drone, balloon and other unmanned aerial...

and less than 0.5 L☉. The pair orbit around a common centre with an orbital period of 79 years. Their elliptical orbit is eccentric, so that the distance...

molecules as delocalized molecular orbitals that possess the same symmetry as the molecule, Hund and Mulliken's molecular-orbital method, including contributions...

Jupiter and Saturn on cometary orbits. Having compiled a list of 24 comet observations, he calculated that the orbital elements of a second comet that...

(minor-planet number 136472) is a dwarf planet orbiting the Sun in the Kuiper belt, a disc of icy bodies beyond the orbit of Neptune. It is the fourth largest dwarf...

The supraorbital foramen, is a bony elongated opening located above the orbit (eye socket) and under the forehead. It is part of the frontal bone of the...

ground state, is the only state that can be described by a Slater orbital. Slater orbitals have no radial nodes, while the excited states of the hydrogen...

an uneasy alliance, both romantic and professional, as they fight the Orbitals to survive. A 30th Anniversary Edition was published in 2011 with noticeable...

Earth—that is, of one or more natural satellites with relatively stable orbits of Earth, other than the Moon—have existed for some time. Several candidates...

periorbita is the area around the orbit. Sometimes it refers specifically to the layer of tissue surrounding the orbit that consists of periosteum. However...

primary data for this and other partial lists is based on JPL's "Small-Body Orbital Elements" and data available from the Minor Planet Center. Critical list...

Tidal locking between a pair of co-orbiting astronomical bodies occurs when one of the objects reaches a state where there is no longer any net change...

orbital sunrise is the natural light display observed in space during low orbit from behind Earth's horizon. Orbital sunrises occur when the orbiting...

Pople's use of Gaussian orbitals to speed up molecular electronic structure calculations as opposed to using Slater-type orbitals, a choice made to improve...

trajectory In orbital mechanics, a Lissajous orbit (pronounced [li.sa.ʒu]), named after Jules Antoine Lissajous, is a quasi-periodic orbital trajectory that...

out-of-plane p z {\displaystyle p_{z}} orbital and the in-plane p x {\displaystyle p_{x}} and p y {\displaystyle p_{y}} orbitals, opening a gap Δ B G {\displaystyle...

systems) Level-set method Linear combination of atomic orbitals molecular orbital method (molecular orbitals) Method of characteristics Least squares method...

satellites called near-orbitals. To protect themselves, the near-orbitals jointly formed a military organization known as the Near Orbital Vanguard Alliance...

Earth orbit for master sergeants, medium Earth orbit for senior master sergeants, and geosynchronous orbit for chief master sergeants. These orbital chevrons...

LHS 1140 b is an exoplanet orbiting within the conservative habitable zone of the red dwarf LHS 1140. Discovered in 2017 by the MEarth Project, LHS 1140...

Orbital artery may refer to: Infraorbital artery Supraorbital artery Zygomatico-orbital artery This disambiguation page lists articles associated with...

It describes a situation in which the density of objects in low Earth orbit (LEO) becomes so high due to space pollution that collisions between these...

primary data for this and other partial lists is based on JPL's "Small-Body Orbital Elements" and data available from the Minor Planet Center. Critical list...

theory claims that a spacecraft of extraterrestrial origin is in near-polar orbit of the Earth, and that NASA is covering up its existence and origin. This...

2014. In 2023, the first flight test of Starship made it SpaceX's fourth orbital-class launch facility, following three launch locations that are leased...

, Here the sum extends over π molecular orbitals only, and ni is the number of electrons occupying orbital i with coefficients cri and csi on atoms r...

Orbital Marine Power (formerly Scotrenewables Tidal Power Ltd) is a Scottish renewable energy company focused on the development and global deployment...

vein is a vein of the orbit that - together with the superior ophthalmic vein - represents the principal drainage system of the orbit. It begins from a venous...

supersynchronous orbit is an orbit with a period greater than that of a synchronous orbit, or an orbit whose major axis is larger than that of a synchronous orbit. A...

Orbital Service Station, is a proposed Russian orbital space station scheduled to begin construction in 2028. Initially an evolution of the Orbital Piloted...

molecular orbitals of [Cu(CF3)4]− are dominated by ligand parentage due to the higher-lying ligand orbitals compared to the metal orbitals, and this inversion...

bombardment of interplanetary space and the magnetic belts of low Earth orbit. Space launch vehicles must withstand titanic forces, while satellites can...

in Israel, on the Mediterranean coast. The low Earth orbit satellites complete one Earth orbit every 90 minutes. The satellite launches made Israel the...

lone pair to the p and d orbitals of the iron atom (the "center" of the complex). The center has three electrons in its d orbitals, leaving 13 empty places...

calculations based on molecular orbitals, and the density functional theory. These models either depart from the atomic orbitals of neutral atoms that share...

{\displaystyle t_{2g}} orbitals of lower energy, and if there are more than six electrons, the e g {\displaystyle e_{g}} orbitals of higher energy. The...

An orbital pole is either point at the ends of the orbital normal, an imaginary line segment that runs through a focus of an orbit (of a revolving body...

The ArcelorMittal Orbit (often referred to as the Orbit Tower or its original name, Orbit) is a 114.5-metre (376-foot) sculpture and observation tower...

circular orbit and in the same orbital plane as Earth, there would be total solar eclipses at every new moon. Instead, because the Moon's orbit is tilted...

atom, which erroneously showed the orbital paths of electrons around the central nucleus, and not on the atomic orbitals. It resembles the authoritative...

In anatomical terms, it is located below the infraorbital margin of the orbit. It transmits the infraorbital artery and vein, and the infraorbital nerve...

Strange Cargo 2 is the third album by electronic instrumentalist William Orbit. It was released in 1990. The album is the second in a series of similarly...

on 27 October 1829. NGC 189 orbits the Milky Way on a nearly circular orbit with an eccentricity of 0.053 and an orbital period of 231,000 years. It enters...

(March 2021). "Using Mars co-orbitals to estimate the importance of rotation-induced YORP break-up events in Earth co-orbital space". Monthly Notices of...

The Orbit Awards were given by the National Space Society and the Space Tourism Society to pioneers in the private space travel industry, and presented...

The mission, designated STS-107, was the twenty-eighth flight for the orbiter and the 113th flight of the Space Shuttle fleet. It was dedicated to research...

1950s and 1960s, the Soviet space program used dogs for suborbital and orbital space flights as proof-of-concept to determine whether human spaceflight...

the treatment into a short story. If magazine retitled it "At the End of Orbit" for publication but Clarke preferred his original title because it has...

kōngjiānzhàn), is China's first permanently crewed space station, in low Earth orbit since 2021. Operated by the China Manned Space Agency (CMSA), it is China's...

of the Manned Orbital Development System, or MODS. The plan was to use off-the-shelf Gemini spacecraft. It began as the Military Orbital Development System...

orbit@home was a BOINC-based volunteer computing project of the Planetary Science Institute. It uses the "Orbit Reconstruction, Simulation and Analysis"...

heliocentric orbit (also called circumsolar orbit) is an orbit around the Sun. The inner planets are mainly influenced by the Sun's gravity, and orbit points...

low-lying unoccupied ligand orbitals (π*) can receive back-donation (or backbonding) from the occupied metal orbitals. This has the opposite effect...

primary data for this and other partial lists is based on JPL's "Small-Body Orbital Elements" and data available from the Minor Planet Center. Critical list...

by British electronic musician and record producer, William Orbit. A follow-up to Orbit's 1995 album Pieces in a Modern Style, it was released on compact...

HD 240237 b is a super-Jupiter exoplanet orbiting the K-type giant star HD 240237 about 4,900 light-years (1,500 parsecs, or nearly 4.6×1016 km) away from...

molecular orbitals.  Additional calculations showed σ-bonding orbitals between the central carbon atom and complexed phosphorus atoms but no orbitals localised...

developed the orbital engine and the orbital combustion process engine. Sarich founded the Orbital Engine Company, which developed the orbital combustion...

Proxima Centauri b is an exoplanet orbiting within the habitable zone of the red dwarf star Proxima Centauri in the constellation Centaurus. It can also...

The Uranus Orbiter and Probe is an orbiter mission concept to study Uranus and its moons. The orbiter would also deploy an atmospheric probe to characterize...

of degenerate orbitals. The triplet consists of three states with spin components +1, 0 and −1 along the direction of the total orbital angular momentum...

between σ*-orbital and π-orbitals originated from 3px and 3py orbitals is small enough to induce considerable mixing between the σ*-orbital and one of...

list. Slater-type orbitals (STOs) as basis functions for both molecular and periodic calculations, in contrast to Gaussian orbitals (GTOs) and plane waves...

and, sometimes, a ring about the orbit. Generally, it is located behind the postfrontal and posteriorly to the orbital fenestra. In some vertebrates, as...

primary data for this and other partial lists is based on JPL's "Small-Body Orbital Elements" and data available from the Minor Planet Center. Critical list...

chemical reaction, valence, the surface of potential energy, molecular orbitals, orbital interactions, and molecule activation. Theoretical chemistry unites...

astrodynamics, orbit phasing is the adjustment of the time-position of spacecraft along its orbit, usually described as adjusting the orbiting spacecraft's...

The Boeing X-37, also known as the Orbital Test Vehicle (OTV), is a reusable robotic spacecraft. It is boosted into space by a launch vehicle, re-enters...

Volkswagen Orbit is a concept car by styling house Italdesign shown at the 1986 Turin Motor Show. It shouldn't be confused with another Volkswagen Orbit concept...

Low Earth Orbit and Starship will push both to a lunar orbit. With Blue Moon, SLS launches Orion towards the Moon to dock in a lunar orbit. With either...

Hinterland is the fifth studio album by electronic instrumentalist William Orbit, which released under the alias Strange Cargo. It is the fourth in a series...

Bohr's circular orbits with atomic orbitals giving only the probability of finding an electron at positions around the nucleus. The orbitals come in a variety...

integrals, usually two-electron repulsion integrals. If the number of orbitals used in the calculation is N, the number of two-electron repulsion integrals...

separate the two vehicles. Only multistage rockets have reached orbital speed. Single-stage-to-orbit designs are sought, but have not yet been demonstrated on...

Enucleation is the removal of the eye that leaves the eye muscles and remaining orbital contents intact. This type of ocular surgery is indicated for a number...

The Venus Orbiter Mission (VOM), unofficially known as Shukrayaan (Sanskrit: Śukra 'Venus', Yāna 'Craft, Vehicle'), is a planned ISRO mission to study...

minute orbital branches which pass through the inferior orbital fissure to enter the orbit and innervate the periosteum of the floor of the orbit, and the...

2003 FY128 is a trans-Neptunian object with a diameter of about 460 km. It orbits the Sun at a distance of about 49.81 astronomical units. It was discovered...

(242450) 2004 QY2 is an asteroid on an eccentric orbit, classified as a near-Earth object and potentially hazardous asteroid of the Apollo group, approximately...

orbital plane of a revolving body is the geometric plane in which its orbit lies. Three non-collinear points in space suffice to determine an orbital...

quantized) set of these orbitals exist around the nucleus, as other possible wave patterns rapidly decay into a more stable form. Orbitals can have one or more...

object that is in direct orbit around the Sun, massive enough to be gravitationally rounded, but insufficient to achieve orbital dominance like the eight...

P-N pi bonding orbitals. Likewise, the LUMOs of PN, which consist of a degenerate PN pi-antibonding set, allow it to backbond with orbitals of appropriate...

) is a circumstellar disc in the outer Solar System, extending from the orbit of Neptune at 30 astronomical units (AU) to approximately 50 AU from the...

producer William Orbit. Its recording process was the longest of Madonna's career and was frequently delayed by problems with Orbit's hardware setup, which...

{\displaystyle p_{x}} , p y {\displaystyle p_{y}} ) orbitals and p z {\displaystyle p_{z}} orbital can take place and the Bloch states can be constructed...

physical quantum systems, such as quantum harmonic oscillator, electron orbitals of Hydrogen-like atoms by forcing wavefunctions to be even or odd. This...

John Cruickshank. In this model, fully occupied p orbitals on oxygen overlap with empty sulfur d orbitals (principally the dz2 and dx2–y2). However, in this...

lower density compared to the three. Ganymede orbits Jupiter in roughly seven days and is in a 1:2:4 orbital resonance with the moons Europa and Io, respectively...

Three missions to Mars were launched in 2020, including two rovers, two orbiters, and a lander. NASA has launched the Mars 2020 mission, which includes...

charge transfer transition from oxo ligand p orbitals to empty orbitals derived from manganese(VII) d orbitals. Permanganate(VII) is a strong oxidizer, and...

primary data for this and other partial lists is based on JPL's "Small-Body Orbital Elements" and data available from the Minor Planet Center. Critical list...

Earth-sized planets in the Milky Way, rising to 40 billion if planets orbiting the numerous red dwarfs are included. The least massive exoplanet known...

A space elevator, also referred to as a space bridge, star ladder, and orbital lift, is a proposed type of planet-to-space transportation system, often...

A medium Earth orbit (MEO) is an Earth-centered orbit with an altitude above a low Earth orbit (LEO) and below a high Earth orbit (HEO) – between 2,000...

theory (VBT) that uses localized atomic orbitals as the basis for VBT structures. In Coulson–Fischer Theory, orbitals are delocalized towards nearby atoms...

stated that, in the Solar System, a planet is a celestial body that: is in orbit around the Sun, has sufficient mass to assume hydrostatic equilibrium (a...

HD 40307 d is an extrasolar planet orbiting the star HD 40307, located 42 light-years from Earth in the direction of the southern constellation Pictor...

A blanet is a member of a class of exoplanets that directly orbit black holes. A study published in The Astrophysical Journal found that millions of Jupiter-mass...

Orbital surface may refer to: Orbitofrontal cortex Orbital surface of body of maxilla This disambiguation page lists articles associated with the title...

In spaceflight, an orbital maneuver (otherwise known as a burn) is the use of propulsion systems to change the orbit of a spacecraft. For spacecraft far...

orbitals treat the two lobes of the dyz orbital inside the ring as though a main-group π orbital. One resulting orbital has vanishing metal-orbital component...

In astrodynamics, an orbiting body is any physical body that orbits a more massive one, called the primary body. The orbiting body is properly referred...

of Ceres from the Sun, although its orbit lies entirely within that of Ceres. NASA's Dawn spacecraft entered orbit around Vesta on 16 July 2011 for a one-year...

primary data for this and other partial lists is based on JPL's "Small-Body Orbital Elements" and data available from the Minor Planet Center. Critical list...

a cyclic array of atoms and an associated cyclic array of interacting orbitals). Specifically, cheletropic reactions are a subclass of cycloadditions...

for 2027, the mission is designed as a demonstration flight in low Earth orbit rather than a lunar landing. Four astronauts will launch aboard the Orion...

beyond Earth orbit. The policy had the effect of hiding Soviet Moon mission failures from public view. If the attempt failed in Earth orbit before departing...

that are close to the nucleus, and also in orbitals with no orbital angular momentum. Electrons in s orbitals (regardless of shell or primary quantum number)...

Orbital (also known as Orbital 2 or the Brown Album) is the second studio album by English electronic music duo Orbital, released on 24 May 1993 by Internal...

primary data for this and other partial lists is based on JPL's "Small-Body Orbital Elements" and data available from the Minor Planet Center. Critical list...

In quantum mechanics, orbital magnetization, Morb, refers to the magnetization induced by orbital motion of charged particles, usually electrons in solids...

the final impulse to change the trajectory from the transfer orbit into its final orbit (most commonly circular). For a satellite launched from the Earth...

the first to orbit the Earth. A stray mongrel from the streets of Moscow, she flew aboard the Sputnik 2 spacecraft, launched into low orbit on 3 November...

to create InSAR images, named interferograms. ROI_PAC stands for Repeat Orbit Interferometry PACkage. It is a UNIX based software package. Although many...

Orbital Reef is a low Earth orbit (LEO) space station under development. It is designed by Blue Origin and Sierra Space for commercial space activities...

positions and locations. Orbitals have a range of different shapes in three dimensions. The energies of the different orbitals can be calculated, and they...

because the latter corresponds to a hybrid of the s orbital and all five d orbitals, and f orbitals contract too close to the nucleus to bond in the lanthan­ides...

development of the INDO method. The main development is the inclusion of d orbitals for atoms of the second row of the periodic table. It performs better for...

61 Virginis b (abbreviated 61 Vir b) is an extrasolar planet, orbiting the 5th magnitude G-type star 61 Virginis, in Virgo. This planet has a minimum mass...

Orbital Exploration Technologies, Inc., also known as Orbital Exploration or OrbitX, was a Philippine aerospace and space transportation company. OrbitX...

"An attempt to build a dynamical catalog of present-day solar system co-orbitals". Celestial Mechanics and Dynamical Astronomy. 137 2. arXiv:2410.20015...

are seated for launch and reentry. The orbital module provides additional living space and storage during orbit but is jettisoned before reentry. The service...

atomic orbitals) within an atom. Atomic orbitals are quantized, meaning they exist as defined values instead of being continuous (see: atomic orbitals). Electrons...

contributed to by 4d orbitals in silver and 2p orbitals in oxygen, though there are slight contributions from silver's 5s and 5p orbitals. Silver(III) oxide/zeolite...

argument of pericenter), symbolized as ω (omega), is one of the orbital elements of an orbiting body. Parametrically, ω is the angle from the body's ascending...

branch of the ophthalmic artery. It passes anteriorly within the orbit to exit the orbit through the supraorbital foramen or notch alongside the supraorbital...

primary data for this and other partial lists is based on JPL's "Small-Body Orbital Elements" and data available from the Minor Planet Center. Critical list...

a mass might be a projectile or a satellite. For example, it can be an orbit — the path of a planet, asteroid, or comet as it travels around a central...

Orbital forcing is the effect on climate of slow changes in the tilt of the Earth's axis and shape of the Earth's orbit around the Sun (see Milankovitch...

in the Solar System. It orbits the Sun at a distance of about 2.8 billion kilometers (1.7 billion miles) and completes one orbit every 84 years. The length...

Operation Orbital was the code-name for a British military operation to train and support the Armed Forces of Ukraine. It was launched in 2015 in response...

asteroid is orbiting the Sun at a distance of 2.87 AU with an eccentricity (ovalness) of 0.204 and an orbital period of 4.87 yr. The orbital plane is inclined...

The planet is a mid-Jovian that orbits 103% farther from the star than Earth to the Sun. It takes about 33 months to orbit with semi-amplitude of 17.9 m/s...

TOI-1452 b is a confirmed super-Earth exoplanet, possibly a water world, orbiting a red-dwarf star TOI-1452 about 100 light-years away in the Draco constellation...

largely on the "LCAO MO" approach (Linear Combination of Atomic Orbitals Molecular Orbitals). A very detailed account of such use in the United Kingdom is...

subgroup and the orbit G⋅x, which sends gGx ↦ g⋅x. This result is known as the orbit–stabilizer theorem. If G is finite then the orbit–stabilizer theorem...

Orbital fissure may refer to: Inferior orbital fissure Superior orbital fissure This disambiguation page lists articles associated with the title Orbital...

coadjoint orbits. In the Kirillov method of orbits, representations of G {\displaystyle G} are constructed geometrically starting from the coadjoint orbits. In...

Orbitor is a bus rapid transit station on the Mississauga Transitway in Mississauga, Ontario, Canada. It is located along the north side of Eglinton Avenue...

religions. Comets usually have highly eccentric elliptical orbits, and they have a wide range of orbital periods, ranging from several years to potentially several...

Orbit is the mascot of Major League Baseball's Houston Astros. He is a lime green alien wearing an Astros jersey with antennae extending into baseballs...

HD 159868 b is an extrasolar planet that orbits HD 159868. It is a jovian planet. The orbit is nearly circular at the average distance of 2.25 AU. HD 219828...

with delocalized bonding and the other are covalent bonds in which the orbitals overlap in a particular direction. The left side (from ionic to metallic)...

transfer orbit (GTO) or geosynchronous transfer orbit is a highly elliptical type of geocentric orbit, usually with a perigee as low as low Earth orbit (LEO)...

spacecraft to lunar orbit in 2022. Artemis II sent four astronauts on a lunar flyby in 2026, becoming the only crewed flight beyond low Earth orbit not part of...

Lyman Spitzer in 1946, the first operational telescopes were the American Orbiting Astronomical Observatory, OAO-2 launched in 1968, and the Soviet Orion...

interest designation KOI-571.05) is a candidate Earth-sized exoplanet orbiting within the habitable zone of the red dwarf star Kepler-186, the outermost...

the orbital septum (palpebral fascia) is a membranous sheet that acts as the anterior (frontal) boundary of the orbit. It extends from the orbital rims...

non-cometary astronomical object observed to have an orbit not bound to the Sun and will have an orbital eccentricity greater than 1 when near perihelion...

primary data for this and other partial lists is based on JPL's "Small-Body Orbital Elements" and data available from the Minor Planet Center. Critical list...

virtual orbitals (see Complete active space) respectively, ε i {\displaystyle \varepsilon _{i}} and ε r {\displaystyle \varepsilon _{r}} are the orbital energies...

Atomic orbitals Core charge d-block contraction (or scandide contraction) Electronegativity Lanthanide contraction Shielding effect Slater-type orbitals Valence...

First Orbit is a 2011 feature-length, experimental documentary film about Vostok 1, the first human space flight around the Earth. By matching the orbit of...

one of the two moons known to orbit Jupiter in less than the length of Jupiter's day, the other being Adrastea. It orbits within the main ring of Jupiter...

its Kepler Object of Interest designation KOI-087.01) is an exoplanet orbiting within the habitable zone of the Sun-like star Kepler-22. It is located...

overlap for the two-electron integrals but not for integrals that are over orbitals centered on the same atom. The method is now rarely used in its original...

An orbital vehicle is a spacecraft which attains orbit. Orbit Vehicle, Orbital Vehicle, Orbiter Vehicle, or Orbiting Vehicle may also refer to: A vehicle...