105 Artemis

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105 Artemis
Discovery
Discovered by James Craig Watson
Discovery date September 16, 1868
Designations
Alternative names  
Minor planet
category
Main belt
Epoch December 31, 2006 (JD 2454100.5)
Aphelion 417.698 Gm (2.792 AU)
Perihelion 292.465 Gm (1.955 AU)
Semi-major axis 355.081 Gm (2.374 AU)
Eccentricity 0.176
Orbital period 1335.678 d (3.66 a)
Average orbital speed 19.18 km/s
Mean anomaly 34.364°
Inclination 21.461°
Longitude of ascending node 188.353°
Argument of perihelion 56.486°
Physical characteristics
Dimensions 119.1 km
Mass 1.8×1018 kg
Mean density ? g/cm³
Equatorial surface gravity 0.0333 m/s²
Escape velocity 0.0630 km/s
Rotation period ? d
Albedo ?
Temperature ~181 K
Spectral type C
Absolute magnitude 8.57

105 Artemis is a large main belt asteroid. It is a C-type asteroid, meaning that it is very dark and composed of carbonaceous material. It was discovered by J. C. Watson on September 16, 1868 and named after Artemis, the Greek goddess of the moon. Several Artemisian stellar occultations have been reported.