335 Roberta

335 Roberta
Discovery
Discovered by Anton Staus
Discovery date September 1, 1892
Designations
Named after Karl Robert Osten-Sacken
Alternate name(s) 1892 C
Minor planet
category
Main belt
Epoch 30 January 2005 (JD 2453400.5)
Aphelion 434.501 Gm (2.904 AU)
Perihelion 305.856 Gm (2.045 AU)
Semi-major axis 370.178 Gm (2.474 AU)
Eccentricity 0.174
Orbital period 1421.736 d (3.89 a)
Average orbital speed 18.93 km/s
Mean anomaly 12.696°
Inclination 5.093°
Longitude of ascending node 148.541°
Argument of perihelion 139.567°
Physical characteristics
Dimensions 89.0 km
Mass unknown
Mean density unknown
Equatorial surface gravity unknown
Escape velocity unknown
Rotation period unknown
Albedo unknown
Temperature unknown
Spectral type F
Absolute magnitude (H) 8.96

335 Roberta is a large Main belt asteroid. It is classified as an F-type asteroid.

It was discovered by Anton Staus on September 1, 1892 in Heidelberg. It was his only asteroid discovery.