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143 Adria
	Orbital diagram
Discovery
Discovered by	J. Palisa
Discovery site	Austrian Naval Obs.
Discovery date	23 February 1875
Designations
MPC designation	(143) Adria
Pronunciation	/ˈeɪdriə/
Named after	Adriatic Sea
Alternative designations	A875 DA; 1960 WK1
Minor planet category	main-belt · (middle); background
Orbital characteristics
	Epoch 23 March 2018 (JD 2458200.5)
	Uncertainty parameter 0
Observation arc	138.03 yr (50,415 d)
Aphelion	2.9688 AU
Perihelion	2.5557 AU
Semi-major axis	2.7622 AU
Eccentricity	0.0748
Orbital period (sidereal)	4.59 yr (1,677 d)
Mean anomaly	354.65°
Mean motion	0° 12m 52.92s / day
Inclination	11.442°
Longitude of ascending node	333.04°
Argument of perihelion	252.89°
Physical characteristics
Mean diameter	89.93±1.9 km
Mass	7.6×1017 kg
Synodic rotation period	22.005 h (0.9169 d)
Geometric albedo	0.0491±0.002
Spectral type	C
Absolute magnitude (H)	9.12

143 Adria is a fairly large main-belt asteroid that was discovered by Austrian astronomer Johann Palisa on 23 February 1875, at the Austrian Naval Observatory, and named after the Adriatic Sea, on the coast of which the discovery was made. This dark-coloured asteroid has probably a primitive carbonaceous chondritic composition.

One occultation by Adria has been reported so far, from Japan on August 21, 2000. A somewhat spherical shape measuring 98 × 86 km was observed.

Photometric observations of this asteroid made during 2008 at the Organ Mesa Observatory in Las Cruces, New Mexico gave an irregular light curve with a period of 22.005 ± 0.001 hours and a brightness variation of 0.08 ± 0.01 in magnitude.^[5]

References

^ ^a ^b "143 Adria". Minor Planet Center. Retrieved 29 May 2018.
^ Noah Webster (1884) A Practical Dictionary of the English Language
^ ^a ^b ^c "JPL Small-Body Database Browser: 143 Adria" (2018-04-25 last obs.). Jet Propulsion Laboratory. Retrieved 29 May 2018.
^ "Asteroid 143 Adria". Small Bodies Data Ferret. Retrieved 29 May 2018.
^ ^a ^b Pilcher, Frederick (September 2008). "Period Determinations for 26 Proserpina, 34 Circe 74 Galatea, 143 Adria, 272 Antonia, 419 Aurelia, and 557 Violetta". The Minor Planet Bulletin. 35 (3): 135–138. Bibcode:2008MPBu...35..135P. ISSN 1052-8091. Retrieved 29 May 2018.

External links

Lightcurve plot of 143 Adria, Palmer Divide Observatory, B. D. Warner (2006)
Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
143 Adria at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
143 Adria at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

[MPC-object-1] "143 Adria". Minor Planet Center. Retrieved 29 May 2018.

[2] Noah Webster (1884) A Practical Dictionary of the English Language

[jpldata-3] "JPL Small-Body Database Browser: 143 Adria" (2018-04-25 last obs.). Jet Propulsion Laboratory. Retrieved 29 May 2018.

[Ferret-4] "Asteroid 143 Adria". Small Bodies Data Ferret. Retrieved 29 May 2018.

[Pilcher2008-5] Pilcher, Frederick (September 2008). "Period Determinations for 26 Proserpina, 34 Circe 74 Galatea, 143 Adria, 272 Antonia, 419 Aurelia, and 557 Violetta". The Minor Planet Bulletin. 35 (3): 135–138. Bibcode:2008MPBu...35..135P. ISSN 1052-8091. Retrieved 29 May 2018.

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