227 Philosophia
| Discovery | |
|---|---|
| Discovered by | P.P. Henry |
| Discovery date | August 12, 1882 |
| Designations | |
Named after | Philosophy |
|
A919 AA, 1933 SD1, 1949 OO1 | |
| Main belt | |
| Orbital characteristics[1] | |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 564.979 Gm (3.777 AU) |
| Perihelion | 378.046 Gm (2.527 AU) |
| 471.513 Gm (3.152 AU) | |
| Eccentricity | 0.198 |
| 2043.817 d (5.6 a) | |
Average orbital speed | 16.78 km/s |
| 57.849° | |
| Inclination | 9.148° |
| 327.808° | |
| 262.118° | |
| Physical characteristics | |
| Dimensions | 87.0 km |
| 8.7 | |
|
| |
227 Philosophia is a large main-belt asteroid that was discovered by the French astronomer Paul-Pierre Henry on August 12, 1882, in Paris and named after the topic of philosophy. Based upon photometric observations, it has a synodic rotation period of 52.98 ± 0.01 with a brightness variation of 0.15 ± 0.02 in magnitude.[2]
References
- ↑ Yeomans, Donald K., "227 Philosophia", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), retrieved 2013-03-30.
- ↑ Pilcher, Frederick; Alkema, Michael S. (July 2014), "Rotation Period Determination for 227 Philosophia", The Minor Planet Bulletin 41 (3): 188–189, Bibcode:2014MPBu...41..188P.
External links
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- 227 Philosophia at the JPL Small-Body Database
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