312 Pierretta

312 Pierretta
Discovery
A three-dimensional model of 312 Pierretta based on its light curve.
Discovered by	Auguste Charlois
Discovery date	28 August 1891
Designations
Minor planet category	Main belt
Orbital characteristics^[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	124.61 yr (45515 d)
Aphelion	3.22530 AU (482.498 Gm)
Perihelion	2.34089 AU (350.192 Gm)
Semi-major axis	2.78309 AU (416.344 Gm)
Eccentricity	0.15889
Orbital period	4.64 yr (1695.9 d)
Average orbital speed	17.86 km/s
Mean anomaly	42.6279°
Mean motion	0° 12^m 44.212^s / day
Inclination	9.02960°
Longitude of ascending node	6.28006°
Argument of perihelion	262.571°
Earth MOID	1.34637 AU (201.414 Gm)
Jupiter MOID	1.95436 AU (292.368 Gm)
Jupiter Tisserand parameter	3.296
Physical characteristics
Dimensions	7004499600000000000♠49.96±1.5 km
Mass	unknown
Mean density	unknown
Equatorial surface gravity	unknown
Equatorial escape velocity	unknown
Rotation period	10.282 h (0.4284 d)
Geometric albedo	6999196700000000000♠0.1967±0.013
Temperature	unknown
Spectral type	unknown
Absolute magnitude (H)	8.89

312 Pierretta is a Main belt asteroid.^[1] It was discovered by Auguste Charlois on August 28, 1891 in Nice.

References

Minor planets navigator

311 Claudia 312 Pierretta 313 Chaldaea

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