2187 La Silla
| Discovery [1] | |
|---|---|
| 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 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 39.02 yr (14252 days) |
| Aphelion | 2.8364 AU (424.32 Gm) |
| Perihelion | 2.2356 AU (334.44 Gm) |
| 2.5360 AU (379.38 Gm) | |
| Eccentricity | 0.11846 |
| 4.04 yr (1475.1 d) | |
| 352.74° | |
| 0° 14m 38.58s / day | |
| Inclination | 13.261° |
| 137.28° | |
| 214.37° | |
| Earth MOID | 1.23721 AU (185.084 Gm) |
| Jupiter MOID | 2.55696 AU (382.516 Gm) |
| Jupiter Tisserand parameter | 3.401 |
| Physical characteristics | |
| Dimensions | 7 km[3] |
| 24 h (1.0 d)[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 15 April 2016.
- 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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