231 Vindobona

231 Vindobona is a large Main belt asteroid. It was discovered by Austrian astronomer Johann Palisa on September 10, 1882. Vindobona is the Latin name for Vienna, Austria, the city where the discovery was made.

DiscoveredbyJohann Palisa

Discoverydate10 September 1882

MPCdesignation

(231) Vindobona

Pronunciation/vɪnˈdɒbənə/^[1]

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231 Vindobona

3D model based on lightcurve data
Discovery
Discovered by	Johann Palisa
Discovery date	10 September 1882
Designations
MPC designation	(231) Vindobona
Pronunciation	/vɪnˈdɒbənə/[1]
Named after	Vindobona
Alternative designations	A882 RB, 1962 UJ
Minor planet category	Main belt
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	131.05 yr (47865 d)
Aphelion	3.3648 AU (503.37 Gm)
Perihelion	2.4810 AU (371.15 Gm)
Semi-major axis	2.9229 AU (437.26 Gm)
Eccentricity	0.15120
Orbital period (sidereal)	5.00 yr (1825.2 d)
Average orbital speed	17.44 km/s
Mean anomaly	12.6140°
Mean motion	0° 11m 50.064s / day
Inclination	5.1021°
Longitude of ascending node	350.535°
Argument of perihelion	268.609°
Physical characteristics
Dimensions	82.33±2.1 km
Synodic rotation period	14.245 h (0.5935 d)
Geometric albedo	0.0545±0.003
Absolute magnitude (H)	9.6

Close

Its dark surface indicates a carbon-rich composition.

Photometric observations at the Organ Mesa Observatory in New Mexico during 2012 showed a rotation period of 14.245 ± 0.001 hours with a brightness variation of 0.20 ± 0.03 in magnitude. This is in agreement with previous results.^[3]