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) | |
Average orbital speed | 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
- ↑ "280 Philia". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
- ↑ James R. Lewis. The Encyclopedia of Heavenly Influences. p. 521. Retrieved 6 April 2015.
External links
This article is issued from Wikipedia - version of the 9/10/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.