1240 Centenaria

1240 Centenaria

Discovery [1]
Discovered by	R. Schorr
Discovery site	Bergedorf Obs.
Discovery date	5 February 1932
Designations
MPC designation	1240 Centenaria
Named after	100th anniversary of Bergedorf Obs.[2]
Alternative names	1932 CD · 1930 VA 1930 XG · A915 RF
Minor planet category	main-belt
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	85.34 yr (31171 days)
Aphelion	3.3665 AU (503.62 Gm)
Perihelion	2.3665 AU (354.02 Gm)
Semi-major axis	2.8665 AU (428.82 Gm)
Eccentricity	0.17441
Orbital period	4.85 yr (1772.7 d)
Mean anomaly	280.16°
Mean motion	0° 12^m 11.088^s / day
Inclination	10.168°
Longitude of ascending node	323.73°
Argument of perihelion	24.204°
Earth MOID	1.36229 AU (203.796 Gm)
Jupiter MOID	2.049 AU (306.5 Gm)
Jupiter Tisserand parameter	3.254
Physical characteristics
Dimensions	59 km
Mean radius	29.425±0.75 km
Rotation period	11.2907 h (0.47045 d)
Geometric albedo	0.0673±0.004
Absolute magnitude (H)	10.1

1240 Centenaria, provisional designation 1932 CD, is a main-belt asteroid discovered on February 5, 1932, by astronomer Richard Schorr at Bergedorf Observatory in Hamburg, Germany. The asteroid measures about 59 kilometers in diameter. It orbits the Sun at a distance of 2.4–3.4 AU every 4.86 years and is inclined by 10 degrees to the ecliptic.^[1]

It was named Centenaria to celebrate the 100th anniversary of the discovering observatory on October 31, 1933.^[2]

References

1. "JPL Small-Body Database Browser: 1240 Centenaria (1932 CD)" (2015-08-07 last obs.). Jet Propulsion Laboratory. Retrieved 28 April 2016.
2. Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1240) Centenaria. Springer Berlin Heidelberg. p. 103. ISBN 978-3-540-29925-7. Retrieved October 2015.

External links

• Dictionary of Minor Planet Names, Google books
• 1240 Centenaria at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters