PROFILPELAJAR.COM

Orthosie
	Discovery image of Orthosie by the Canada-France-Hawaii Telescope in December 2001
Discovery
Discovered by	Scott S. Sheppard; David C. Jewitt; Yanga R. Fernandez
Discovery site	Mauna Kea Observatory
Discovery date	11 December 2001
Designations
Designation	Jupiter XXXV
Pronunciation	/ɔːrˈθoʊziː/
Named after	Ορθωσία Orthōsia
Alternative names	S/2001 J 9
Adjectives	Orthosian /ɔːrˈθoʊʒiən/
Orbital characteristics
	Epoch 17 December 2020 (JD 2459200.5)
Observation arc	16.29 yr (5,949 days)
Semi-major axis	0.1415163 AU (21,170,540 km)
Eccentricity	0.4837243
Orbital period (sidereal)	–629.29 d
Mean anomaly	333.61997°
Mean motion	0° 34m 19.449s / day
Inclination	148.48740° (to ecliptic)
Longitude of ascending node	287.90005°
Argument of perihelion	261.21085°
Satellite of	Jupiter
Group	Ananke group
Physical characteristics
Mean diameter	2 km
Albedo	0.04 (assumed)
Apparent magnitude	23.1
Absolute magnitude (H)	16.6

Orthosie /ɔːrˈθoʊziː/, also known as Jupiter XXXV, is a natural satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2001, and given the temporary designation S/2001 J 9.^[7]^[1]

Orthosie is about 2 kilometres in diameter, and orbits Jupiter at an average distance of 21,075,662 km in 625.07 days, at an inclination of 146.46° to the ecliptic (143° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.3376.^[8]

It was named in August 2003 after Orthosie, the Greek goddess of prosperity and one of the Horae.^[9] The Horae (Hours) were daughters of Zeus and Themis.

Orthosie belongs to the Ananke group.

References

^ ^a ^b Brian G. Marsden (15 May 2003). "MPEC 2002-J54: Eleven New Satellites of Jupiter". International Astronomical Union Minor Planet Center.
^ William Beloe (1821) Herodotus, translated from the Greek, with notes, vol. 2, p. 451
^ per 'Orthosia' in Noah Webster (1884) A Practical Dictionary of the English Language
^ ^a ^b "M.P.C. 127087" (PDF). Minor Planet Circular. Minor Planet Center. 17 November 2020.
^ "Planetary Satellite Physical Parameters". Jet Propulsion Laboratory. 19 February 2015. Retrieved 26 November 2020.
^ Sheppard, Scott. "Scott S. Sheppard - Jupiter Moons". Department of Terrestrial Magnetism. Carnegie Institution for Science. Retrieved 26 November 2020.
^ Daniel W. E. Green (16 May 2002). "IAUC 7900: Satellites of Jupiter". International Astronomical Union.
^ "Ephemeris of Orthosie, Epoch 2017 Feb. 16.0 TT = JDT 2457800.5". MPC. Retrieved 13 August 2018.
^ Daniel W. E. Green (8 August 2003). "IAUC 8177: Satellites of Jupiter, Saturn, Uranus". International Astronomical Union.