(578) Happelia
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Asteroid (578) Happelia |
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| Properties of the orbit ( animation ) | |
| Orbit type | Middle main belt |
| Major semi-axis | 2.75 AU |
| eccentricity | 0.194 |
| Perihelion - aphelion | 2.216 AU - 3.284 AU |
| Inclination of the orbit plane | 6.2 ° |
| Length of the ascending node | 29.4 ° |
| Argument of the periapsis | 261.9 ° |
| Time of passage of the perihelion | June 28, 2009 |
| Sidereal period | 4 a 204 d |
| Mean orbital velocity | 17.8 km / s |
| Physical Properties | |
| Medium diameter | 69.30 km |
| Albedo | 0.0769 |
| Rotation period | 10 h 4 min |
| Absolute brightness | 9.2 likes |
| history | |
| Explorer | Max Wolf |
| Date of discovery | November 1, 1905 |
| Another name | 1905 RZ, 1958 HN, A899 KA |
| 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. | |
(578) Happelia is an asteroid of the main belt that was discovered on November 1, 1905 by the German astronomer Max Wolf in Heidelberg .
The asteroid was named after the German painter Carl Happel , who financially supported the observatory.