2187 La Silla

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°
 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

    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. 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.
    2. 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.
    3. 1 2 3 "LCDB Data for (2187) La Silla". Asteroid Lightcurve Database (LCDB). Retrieved October 2015.
    4. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves (2187) La Silla". Geneva Observatory. Retrieved October 2015.
    5. "2187 La Silla (1976 UH)". Minor Planet Center. Retrieved October 2015.

    External links


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