312 Pierretta

312 Pierretta

A three-dimensional model of 312 Pierretta based on its light curve.
Discovery
Discovered by	Auguste Charlois
Discovery date	August 28, 1891
Designations
Minor planet category	Main belt
Orbital characteristics
Epoch 30 January 2005 (JD 2453400.5)
Aphelion	483.265 Gm (3.23 AU)
Perihelion	348.412 Gm (2.329 AU)
Semi-major axis	415.839 Gm (2.78 AU)
Eccentricity	0.162
Orbital period	1692.738 d (4.63 a)
Average orbital speed	17.86 km/s
Mean anomaly	232.351°
Inclination	9.041°
Longitude of ascending node	6.764°
Argument of perihelion	260.598°
Physical characteristics
Dimensions	50.0 km
Mass	unknown
Mean density	unknown
Surface gravity	unknown
Escape velocity	unknown
Rotation period	unknown
Albedo	unknown
Temperature	unknown
Spectral type	unknown
Absolute magnitude (H)	8.89

312 Pierretta is a Main belt asteroid. It was discovered by Auguste Charlois on August 28, 1891 in Nice.