280 Philia

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280 Philia
Discovery
Discovered by Johann Palisa
Discovery date 29 October 1888
Designations
Named after
Philia
Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 126.17 yr (46083 d)
Aphelion 3.26133 AU (487.888 Gm)
Perihelion 2.62787 AU (393.124 Gm)
2.94460 AU (440.506 Gm)
Eccentricity 0.10756
5.05 yr (1845.6 d)
17.31 km/s
52.7987°
0° 11m 42.212s / day
Inclination 7.44582°
9.91179°
90.0510°
Earth MOID 1.65638 AU (247.791 Gm)
Jupiter MOID 1.90858 AU (285.520 Gm)
Jupiter Tisserand parameter 3.250
Physical characteristics
Dimensions 45.69±2.0 km
Mass unknown
Mean density
unknown
Equatorial surface gravity
unknown
Equatorial escape velocity
unknown
70.26 h (2.928 d)
0.0444±0.004
Temperature unknown
unknown
10.9

280 Philia is a fairly large Main belt asteroid.[2] It was discovered by Johann Palisa on October 29, 1888 at the Vienna Observatory.

References[edit]

  1. ^ "280 Philia". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016. 
  2. ^ James R. Lewis. The Encyclopedia of Heavenly Influences. p. 521. Retrieved 6 April 2015. 

External links[edit]