93 Minerva

Infobox Planet | discovery=yes | physical_characteristics = yes | bgcolour=#FFFFC0
name=93 Minerva
discoverer=James Craig Watson
discovered=August 24, 1867
alt_names=
mp_category=Main belt
epoch=December 31, 2006 (JD 2454100.5)
semimajor=412.026 Gm (2.754 AU)
perihelion=353.703 Gm (2.364 AU)
aphelion=470.348 Gm (3.144 AU)
eccentricity=0.142
period=1669.541 d (4.57 a)
inclination=8.557°
asc_node=4.148°
arg_peri=275.747°
mean_anomaly=226.139°
avg_speed=17.86 km/s
dimensions=141.0 km
mass=2.9e|18 kg
density=? g/cm³
surface_grav=0.0394 m/s²
escape_velocity=0.0745 km/s
rotation=? d
spectral_type=C
abs_magnitude=7.7
albedo=0.088 [ [http://www.psi.edu/pds/resource/albedo.html Asteroid Data Sets ] ]
single_temperature=~168 K

93 Minerva "(mi-nerr'-və," IPAEng|mɨˈnɝvə) is a large main belt asteroid. It is a C-type asteroid, meaning that it has a dark surface and possibly a primitive carbonaceous composition. It was discovered by J. C. Watson on August 24, 1867 and named after Minerva, the Roman equivalent of Athena, goddess of wisdom. An occultation of a star by Minerva was observed in France, Spain and the United States on November 22, 1982. An occultation diameter of ~170 km was measured from the observations. Since then two more occultations have been observed, which give an estimated mean diameter of ~150 km for diameter. [http://sorry.vse.cz/~ludek/mp/world/mpocc1.txt]

References