309 Fraternitas

309 Fraternitas
Discovery
Discovered by	Johann Palisa
Discovery date	April 6, 1891
Designations
Named after	fraternity
Minor planet category	Main belt
Orbital characteristics
	Epoch 30 January 2005 (JD 2453400.5)
Aphelion	444.129 Gm (2.969 AU)
Perihelion	353.145 Gm (2.361 AU)
Semi-major axis	398.637 Gm (2.665 AU)
Eccentricity	0.114
Orbital period	1588.796 d (4.35 a)
Average orbital speed	18.25 km/s
Mean anomaly	317.538°
Inclination	3.722°
Longitude of ascending node	356.63°
Argument of perihelion	311.56°
Physical characteristics
Dimensions	45.0 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)	10.4
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309 Fraternitas is a typical Main belt asteroid.^[1] It was discovered by Johann Palisa on April 6, 1891 in Vienna.

References

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