231 Vindobona

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/
Named after	Vindobona
Alternative designations	A882 RB, 1962 UJ
Minor planet category	Main belt
Orbital characteristics
	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

Vindobona (minor planet designation: 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.

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]

References

^ Noah Webster (1884) A Practical Dictiozary of the English Language
^ "231 Vindobona". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
^ Pilcher, Frederick (April 2013), "Rotation Period Determinations for 24 Themis, 159 Aemilia 191 Kolga, 217 Eudora, 226 Weringia, 231 Vindobona, and 538 Friederike", The Minor Planet Bulletin, 40 (2): 85–87, Bibcode:2013MPBu...40...85P.

External links

The Asteroid Orbital Elements Database
Minor Planet Discovery Circumstances
Asteroid Lightcurve Data File
231 Vindobona at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
231 Vindobona at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

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[1] Noah Webster (1884) A Practical Dictiozary of the English Language

[jpldata-2] "231 Vindobona". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.

[bmps40_2_85-3] Pilcher, Frederick (April 2013), "Rotation Period Determinations for 24 Themis, 159 Aemilia 191 Kolga, 217 Eudora, 226 Weringia, 231 Vindobona, and 538 Friederike", The Minor Planet Bulletin, 40 (2): 85–87, Bibcode:2013MPBu...40...85P.

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