227 Philosophia
Discovery | |
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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 | |
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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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