2187 La Silla
Discovery [1] | |
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Discovered by | R. M. West |
Discovery site | ESO (La Silla) |
Discovery date | 24 October 1976 |
Designations | |
MPC designation | 2187 La Silla |
Named after |
La Silla Observatory (discovery location)[2] |
1976 UH | |
main-belt · Eunomia[3] | |
Orbital characteristics [1] | |
Epoch 27 June 2015 (JD 2457200.5) | |
Uncertainty parameter 0 | |
Observation arc | 38.93 yr (14,221 days) |
Aphelion | 2.8363 AU |
Perihelion | 2.2354 AU |
2.5359 AU | |
Eccentricity | 0.1184 |
4.04 yr (1,475 days) | |
303.89° | |
Inclination | 13.260° |
137.27° | |
214.41° | |
Physical characteristics | |
Dimensions | 7 km[3] |
24 h[4] | |
S [3] | |
13.2 | |
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2187 La Silla, provisionally designated 1976 UH, is a small, stony asteroid in the main-belt, calculated to be about 7 kilometers in diameter. It was discovered by Danish astronomer Richard Martin West at ESO's La Silla site in northern Chile on 24 October 1976.[5] The asteroid orbits the Sun at a distance of 2.2–2.8 AU once every 4 years (1,475 days).[1] It has a rotation period of 24 hours.[4] The S-type asteroid belongs to the Eunomia family.
It is named after the mountain in the Chilean Atacama desert on the top of which the European Southern Observatory is situated.[2]
References
- 1 2 3 "JPL Small-Body Database Browser: 2187 La Silla (1976 UH)" (2015-10-01 last obs.). Jet Propulsion Laboratory. Retrieved October 2015.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (2187) La Silla. Springer Berlin Heidelberg. p. 178. ISBN 978-3-540-29925-7. Retrieved October 2015.
- 1 2 3 "LCDB Data for (2187) La Silla". Asteroid Lightcurve Database (LCDB). Retrieved October 2015.
- 1 2 Behrend, Raoul. "Asteroids and comets rotation curves (2187) La Silla". Geneva Observatory. Retrieved October 2015.
- ↑ "2187 La Silla (1976 UH)". Minor Planet Center. Retrieved October 2015.
External links
- Silla Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- 2187 La Silla at the JPL Small-Body Database
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