320 Katharina

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320 Katharina
Discovery
Discovered by Johann Palisa
Discovery date October 11, 1891
Designations
Minor planet category Main belt (Eos)
Orbital characteristics
Epoch 30 January 2005 (JD 2453400.5)
Aphelion 501.431 Gm (3.352 AU)
Perihelion 399.92 Gm (2.673 AU)
Semi-major axis 450.676 Gm (3.013 AU)
Eccentricity 0.113
Orbital period 1909.845 d (5.23 a)
Average orbital speed 17.16 km/s
Mean anomaly 242.461°
Inclination 9.381°
Longitude of ascending node 220.047°
Argument of perihelion 151.497°
Physical characteristics
Dimensions 17 - 37 km
Mass [7.72 x 10^15 kg - 7.97 x 10^16 kg]? (assumed)
Mean density 3.0 g/cm^3? (assumed)
Equatorial surface gravity unknown
Escape velocity unknown
Rotation period unknown
Albedo 0.3207-0.0677
Temperature 145.78 K-157.79 K
Spectral type K-type?
Absolute magnitude (H) 10.7

320 Katharina is a small Main belt asteroid orbiting in the Eos family of asteroids, including 513 Centesima and 221 Eos.

It was discovered by Johann Palisa on October 11, 1891 in Vienna.