(522) Helga
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Asteroid (522) Helga |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 3,626 AU |
| eccentricity | 0.076 |
| Perihelion - aphelion | 3.351 AU - 3.901 AU |
| Inclination of the orbit plane | 4.4 ° |
| Length of the ascending node | 117 ° |
| Argument of the periapsis | 238.3 ° |
| Time of passage of the perihelion | July 25, 2012 |
| Sidereal period | 6 a 331 d |
| Mean orbital velocity | 15.6 km / s |
| Physical Properties | |
| Medium diameter | approx. 101 km |
| Albedo | 0.04 |
| Rotation period | 8.1 h |
| Absolute brightness | 9.1 mag |
| Spectral class | X |
| history | |
| Explorer | Max Wolf |
| Date of discovery | January 10, 1904 |
| Another name | 1904 NC, 1936 QP |
| 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. | |
(522) Helga is an asteroid of the main belt that was discovered on January 10, 1904 by the German astronomer Max Wolf in Heidelberg .
The origin of the name is unknown.