(555) Norma
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Asteroid (555) Norma |
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| Properties of the orbit ( animation ) | |
| Orbit type | Outer main belt |
| Major semi-axis | 3.189 AU |
| eccentricity | 0.15 |
| Perihelion - aphelion | 2.71 AU - 3.668 AU |
| Inclination of the orbit plane | 2.7 ° |
| Length of the ascending node | 130.5 ° |
| Argument of the periapsis | 355.5 ° |
| Time of passage of the perihelion | March 24, 2012 |
| Sidereal period | 5 a 254 d |
| Mean orbital velocity | 16.6 km / s |
| Physical Properties | |
| Medium diameter | 40.12 km |
| Albedo | 0.0632 |
| Rotation period | 30 h 36 min |
| Absolute brightness | 10.6 mag |
| history | |
| Explorer | Max Wolf |
| Date of discovery | January 14, 1905 |
| Another name | 1905 PT, 1939 BA, 1950 CC |
| 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. | |
(555) Norma is an asteroid of the main belt , which on 14 January 1905 by Max Wolf was discovered.
The asteroid was named after the title character from Vincenzo Bellini's opera Norma .