397 Vienna

Minor Planet | name=397 Vienna
discoverer=Auguste Charlois
discovery_date=December 19, 1894
designations=1894 BM
category=Main belt
epoch=30 January, 2005 (JD 2453400.5)
semimajor=394.164 Gm (2.635 AU)
perihelion=297.033 Gm (1.986 AU)
aphelion=491.295 Gm (3.284 AU)
eccentricity=0.246
period=1562.13 d (4.28 a)
inclination=12.835°
asc_node=228.271°
arg_peri=139.451°
mean_anomaly=315.367°
speed=18.35 km/s
dimensions=43.3±1.8 km
mass="unknown"
density="unknown"
gravity="unknown"
escape_velocity="unknown"
rotation=15.48 h
spectral_class="unknown"
abs_mag=9.31
albedo=0.178±0.015
temperature="unknown"

397 Vienna is a typical Main belt asteroid. The Tholen spectral type is "S" and the SMASSII spectral type is "K".

It was discovered by Auguste Charlois on December 19, 1894 in Nice.

References

* cite web
last = Yeomans
first = Donald K.
date = 2007-05-02
url =http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=397
title =397 Vienna (1894 BM)
publisher =JPL Small-Body Database Browser
accessdate = 2007-05-02]