(227) Philosophia
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Asteroid (227) Philosophia |
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| Properties of the orbit ( animation ) | |
| Orbit type | Outer main belt |
| Major semi-axis | 3.154 AU |
| eccentricity | 0.198 |
| Perihelion - aphelion | 2.531 AU - 3.777 AU |
| Inclination of the orbit plane | 9.1 ° |
| Length of the ascending node | 327.8 ° |
| Argument of the periapsis | 262.7 ° |
| Time of passage of the perihelion | 20th June 2015 |
| Sidereal period | 5 a 219 d |
| Mean orbital velocity | 16.6 km / s |
| Physical Properties | |
| Medium diameter | approx. 124 km |
| Albedo | 0.065 |
| Rotation period | 18 h 3 min |
| Absolute brightness | 9.1 mag |
| history | |
| Explorer | Paul Henry |
| Date of discovery | August 12, 1882 |
| Another name | 1933 SD 1 , 1949 OO 1 , A919 AA |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(227) Philosophia is an asteroid of the outer main asteroid belt , which on 12 August 1882 by Paul Henry on the Observatory of Paris was discovered. The name is derived from philosophy .
Philosophia moves from 2.5271 ( perihelion ) to 3.7767 ( aphelion ) astronomical units around the sun in 4.5958 years . The orbit is inclined 9.1477 ° to the ecliptic , the orbital eccentricity is 0.1982.
Philosophia has an average diameter of about 124 kilometers. It has a dark surface with an albedo of 0.065.