1220 Crocus

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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

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[edit]

  1. ^ a b c "JPL Small-Body Database Browser: 1220 Crocus (1932 CU)" (2015-05-26 last obs.). Jet Propulsion Laboratory. Retrieved 30 April 2016. 
  2. ^ a b Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1220) Crocus. Springer Berlin Heidelberg. p. 102. ISBN 978-3-540-29925-7. Retrieved 22 August 2016. 
  3. ^ Pilcher, F. (October 2015). "Rotation period determination for 1220 Crocus" (PDF). The Minor Planet Bulletin. 42 (3): 155. Bibcode:2015MPBu...42..155P. 

External links[edit]