1218 Aster

1218 Aster

Discovery [1]
Discovered by	K. Reinmuth
Discovery site	Heidelberg Obs.
Discovery date	29 January 1932
Designations
MPC designation	1218 Aster
Named after	Aster[2]
Alternative names	1932 BJ · 1978 TJ5 1978 VQ12
Minor planet category	main-belt
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	83.84 yr (30622 days)
Aphelion	2.5098 AU (375.46 Gm)
Perihelion	2.0159 AU (301.57 Gm)
Semi-major axis	2.2628 AU (338.51 Gm)
Eccentricity	0.10913
Orbital period	3.40 yr (1243.3 d)
Mean anomaly	300.99°
Mean motion	0° 17^m 22.38^s / day
Inclination	3.1572°
Longitude of ascending node	63.824°
Argument of perihelion	69.281°
Earth MOID	1.03148 AU (154.307 Gm)
Jupiter MOID	2.52127 AU (377.177 Gm)
Jupiter Tisserand parameter	3.609
Physical characteristics
Absolute magnitude (H)	13.2

1218 Aster, provisional designation 1932 BJ, is a main-belt asteroid discovered on January 29, 1932, by Karl Reinmuth at Heidelberg Observatory in Germany.^[1]

It was later named after the genus of flowers, Aster.^[2]

References

1. "JPL Small-Body Database Browser: 1218 Aster (1932 BJ)" (2015-09-15 last obs.). Jet Propulsion Laboratory. Retrieved 30 April 2016.
2. Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1218) Aster. Springer Berlin Heidelberg. p. 101. ISBN 978-3-540-29925-7. Retrieved October 2015.

External links

• Dictionary of Minor Planet Names, Google books
• 1218 Aster at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters