1220 Crocus
| Discovery [1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 11 February 1932 |
| Designations | |
| MPC designation | 1220 Crocus |
Named after | Crocus[2] |
| 1932 CU · 1955 PC | |
| main-belt | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 84.18 yr (30747 days) |
| Aphelion | 3.2246 AU (482.39 Gm) |
| Perihelion | 2.7824 AU (416.24 Gm) |
| 3.0035 AU (449.32 Gm) | |
| Eccentricity | 0.073613 |
| 5.21 yr (1901.2 d) | |
| 128.10° | |
| 0° 11m 21.66s / day | |
| Inclination | 11.363° |
| 113.35° | |
| 333.67° | |
| Earth MOID | 1.80207 AU (269.586 Gm) |
| Jupiter MOID | 1.93873 AU (290.030 Gm) |
| Jupiter Tisserand parameter | 3.218 |
| Physical characteristics | |
| 491.4 h (20.48 d) | |
| 11.72 | |
|
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1220 Crocus, provisionally designated 1932 CU, is a main-belt asteroid discovered on February 11, 1932, by astronomer Karl Reinmuth at Heidelberg Observatory, Germany.[1] Based on lightcurve studies, Crocus has a very long rotation period of 491 hours.[3]
It was later named after the genus of flowering plants, Crocus, in the iris family.[2]
References
- 1 2 3 "JPL Small-Body Database Browser: 1220 Crocus (1932 CU)" (2015-05-26 last obs.). Jet Propulsion Laboratory. Retrieved 30 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1220) Crocus. Springer Berlin Heidelberg. p. 102. ISBN 978-3-540-29925-7. Retrieved October 2015.
- ↑ Pilcher, F. (October 2015). "Rotation period determination for 1220 Crocus" (PDF). The Minor Planet Bulletin 42 (3): 155. Bibcode:2015MPBu...42..155P.
External links
- Dictionary of Minor Planet Names, Google books
- 1220 Crocus at the JPL Small-Body Database
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