(170) Maria
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Asteroid (170) Maria |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Maria family |
| Major semi-axis | 2.553 AU |
| eccentricity | 0.062 |
| Perihelion - aphelion | 2.394 AU - 2.712 AU |
| Inclination of the orbit plane | 14.4 ° |
| Length of the ascending node | 301.4 ° |
| Argument of the periapsis | 158.2 ° |
| Time of passage of the perihelion | June 28, 2011 |
| Sidereal period | 4 a 29 d |
| Mean orbital velocity | 18.6 km / s |
| Physical Properties | |
| Medium diameter | 44 km |
| Albedo | 0.16 |
| Rotation period | 13.1 h |
| Absolute brightness | 9.4 mag |
| Spectral class | S. |
| history | |
| Explorer | J. Perrotin |
| Date of discovery | January 10, 1877 |
| 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. | |
(170) Mary is an asteroid of the main belt , which on 10 January 1877 by the French astronomer Henri Joseph Perrotin was discovered.
It was named in memory of an early deceased sister of the Italian astronomer Antonio Abetti .
See also
Web links
- Astronomical News: Investigations into the general Jupiter disturbances of the planet 170 Maria from 1921
- Document from 1885 on the observation of small planets at the observatory in Berlin