1187 Afra
| Discovery [1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 6 December 1929 |
| Designations | |
| MPC designation | 1187 Afra |
Named after | unknown[2] |
| 1929 XC | |
| main-belt | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 86.36 yr (31544 days) |
| Aphelion | 3.2256 AU (482.54 Gm) |
| Perihelion | 2.0584 AU (307.93 Gm) |
| 2.6420 AU (395.24 Gm) | |
| Eccentricity | 0.22090 |
| 4.29 yr (1568.5 d) | |
| 91.257° | |
| 0° 13m 46.272s / day | |
| Inclination | 10.715° |
| 327.42° | |
| 74.186° | |
| Earth MOID | 1.0945 AU (163.73 Gm) |
| Jupiter MOID | 2.34472 AU (350.765 Gm) |
| Jupiter Tisserand parameter | 3.335 |
| Physical characteristics | |
| Dimensions | 31.83 km |
Mean radius | 15.915±1.95 km |
|
14.0701 h 14.09±0.02 h[3] | |
| 0.0527±0.016 | |
| SMASS = X | |
| 11.4 | |
|
| |
1187 Afra, provisional designation 1929 XC, is a main-belt asteroid discovered on December 6, 1929, by Karl Reinmuth at Heidelberg Observatory, Germany. The X-type asteroid measures about 32 kilometers in diameter.[1]
The light curve of 1187 Afra shows a periodicity of 14.09 ± 0.02 hours, during which time the brightness of the object varies by 0.40±0.02 in magnitude.[3]
It is not known to what person, group of persons, or occurrence the name "Afra" refers to.[2]
References
- 1 2 3 "JPL Small-Body Database Browser: 1187 Afra (1929 XC)" (2014-12-16 last obs.). Jet Propulsion Laboratory. Retrieved 1 May 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1187) Afra. Springer Berlin Heidelberg. p. 100. ISBN 978-3-540-29925-7. Retrieved 22 August 2016.
- 1 2 Menke, John; et al. (October 2008), "Asteroid Lightcurve Analysis at Menke Observatory", The Minor Planet Bulletin, 35 (4): 155–160, Bibcode:2008MPBu...35..155M
External links
- "1187 Afra (1929 XC)". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 2001187.
- 1187 Afra at the JPL Small-Body Database
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