280 Philia

280 Philia
Discovery
Discovered by	Johann Palisa
Discovery date	October 29, 1888
Designations
Named after	Philia
Minor planet category	Main belt
Orbital characteristics
Epoch 30 January 2005 (JD 2453400.5)
Aphelion	487.353 Gm (3.258 AU)
Perihelion	393.613 Gm (2.631 AU)
Semi-major axis	440.483 Gm (2.944 AU)
Eccentricity	0.106
Orbital period	1845.459 d (5.05 a)
Average orbital speed	17.31 km/s
Mean anomaly	317.496°
Inclination	7.446°
Longitude of ascending node	10.404°
Argument of perihelion	85.749°
Physical characteristics
Dimensions	46.0 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)	10.7

280 Philia is a fairly large Main belt asteroid.^[1] It was discovered by Johann Palisa on October 29, 1888 at the Vienna Observatory.

References

↑ James R. Lewis. The Encyclopedia of Heavenly Influences. p. 521. Retrieved 6 April 2015.

External links

280 Philia at the JPL Small-Body Database

Discovery · Orbit diagram · Orbital elements · Physical parameters

Minor planets navigator

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