231 Vindobona

Infobox Planet | discovery=yes | physical_characteristics = yes | bgcolour=#FFFFC0 | name=231 Vindobona
discoverer=Johann Palisa
discovered=September 10, 1882
alt_names=1962 UJ
mp_category=Main belt
epoch=30 January, 2005 (JD 2453400.5)
semimajor=436.573 Gm (2.918 AU)
perihelion=367.586 Gm (2.457 AU)
aphelion=505.56 Gm (3.379 AU)
eccentricity=0.158
period=1820.907 d (4.99 a)
inclination=5.102°
asc_node=350.928°
arg_peri=267.314°
mean_anomaly=264.553°
avg_speed=17.44 km/s
dimensions=82.0 km
mass="unknown"
density="unknown"
surface_grav="unknown"
escape_velocity="unknown"
rotation=5.547 h
spectral_type="unknown"
abs_magnitude=9.2
albedo=0.055
single_temperature="unknown"

231 Vindobona is a large Main belt asteroid. Its dark surface indicates a carbon-rich composition.

It was discovered by Johann Palisa on September 10, 1882.

Vindobona is the Latin name for Vienna, Austria, the city where the discovery was made.

References

* [ftp://ftp.lowell.edu/pub/elgb/astorb.html The Asteroid Orbital Elements Database]
* [http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html Minor Planet Discovery Circumstances]
* [http://spiff.rit.edu/richmond/parallax/phot/LCSUMPUB.TXT Asteroid Lightcurve Data File]