(631) Philippina
Asteroid (631) Philippina |
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Properties of the orbit ( animation ) | |
Orbit type | Main belt asteroid |
Major semi-axis | 2.79 AU |
eccentricity | 0.085 |
Perihelion - aphelion | 2.553 AU - 3.027 AU |
Inclination of the orbit plane | 18.9 ° |
Length of the ascending node | 224.8 ° |
Argument of the periapsis | 278.3 ° |
Time of passage of the perihelion | February 5, 2009 |
Sidereal period | 4 a 241 d |
Mean orbital velocity | 17.8 km / s |
Physical Properties | |
Medium diameter | (57.7 km ± 1.2) km |
Albedo | 0.18 |
Rotation period | 5 h 54 min |
Absolute brightness | 8.7 likes |
Spectral class | S. |
history | |
Explorer | August Kopff |
Date of discovery | March 21, 1907 |
Another name | 1907 YJ |
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. |
(631) Philippina is an asteroid of the main belt that was discovered on March 21, 1907 by the German astronomer August Kopff in Heidelberg .
The asteroid was named after Philipp Kessler, a friend of the discoverer.