1227 Geranium

Geranium

Discovery
Discovered by	Reinmuth, K.
Discovery site	Heidelberg
Discovery date	5 October 1931
Designations
MPC designation	1227
Named after	Geranium
Alternative names	1931 TD
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	84.53 yr (30875 days)
Aphelion	3.8342779 AU (573.59981 Gm)
Perihelion	2.6019107 AU (389.24030 Gm)
Semi-major axis	3.218094 AU (481.4200 Gm)
Eccentricity	0.1914747
Orbital period	5.77 yr (2108.6 d)
Mean anomaly	315.43856°
Mean motion	0° 10^m 14.623^s / day
Inclination	16.49205°
Longitude of ascending node	0.7014505°
Argument of perihelion	302.80021°
Earth MOID	1.62984 AU (243.821 Gm)
Jupiter MOID	1.72891 AU (258.641 Gm)
Jupiter Tisserand parameter	3.097
Physical characteristics
Mean radius	20.91±0.9 km
Rotation period	12.363 h (0.5151 d)
Geometric albedo	0.0921±0.008
Absolute magnitude (H)	10.8

1227 Geranium (1931 TD) is an outer main-belt asteroid discovered on October 5, 1931, by Karl Wilhelm Reinmuth at Heidelberg.^[2]

It was later named after the genus of plants, Geranium.^[3]

References

1. "1227 Geranium (1931 TD)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 30 April 2016.
2. "JPL Small-Body Database Browser". Retrieved July 20, 2014.
3. Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names. Springer. p. 100. ISBN 3-540-00238-3.

External links

• 1227 Geranium at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters