|
Discovery
|
|
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | October 29, 1888 |
|
Designations
|
|
| Named after | Philia |
| Minor planet category |
Main belt |
| 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 |
| Equatorial 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.
It was discovered by Johann Palisa on October 29, 1888 at the Vienna Observatory.
|
|||||
|
||||||||||||||||||||||