(3298) Massandra
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Asteroid (3298) Massandra |
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| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt asteroid |
| Major semi-axis | 2.3528 AU |
| eccentricity | 0.1936 |
| Perihelion - aphelion | 1.8974 AU - 2.8082 AU |
| Inclination of the orbit plane | 2.5678 ° |
| Length of the ascending node | 285.1799 ° |
| Argument of the periapsis | 51.4730 ° |
| Sidereal period | 3.61 a |
| Mean orbital velocity | 19.42 km / s |
| Physical Properties | |
| Medium diameter | 11.16 km (± 1.6) |
| Albedo | 0.0565 (± 0.020) |
| Absolute brightness | 13.6 mag |
| history | |
| Explorer | Nikolai Tschernych |
| Date of discovery | July 21, 1979 |
| Another name | 1979 OB 15 , 1950 NE, 1950 NO, 1972 RT, 1983 VC |
| 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. | |
(3298) Massandra is an asteroid of the main inner belt , which was discovered by the Soviet astronomer Nikolai Tschernych on July 21, 1979 at the Crimean Observatory in Nauchnyj ( IAU code 095). There had been some observations of the asteroid before: almost simultaneously on July 6, 1950 under the provisional name 1950 NE at the Union Observatory in Johannesburg and four days later (1950 NE ) at the Goethe Link Observatory in Indiana , on September 7 1972 (1972 RT) at the Crimean Observatory in Nautschnyj and on November 1 and 6, 1983 (1983 VC) at the Japanese Geisei Observatory .
The mean diameter of the asteroid was determined to be 11.16 km (± 1.6). With an albedo of 0.0565 (± 0.020) it has a rather dark surface. According to the SMASS classification ( Small Main-Belt Asteroid Spectroscopic Survey ), a spectroscopic investigation by Gianluca Masi , Sergio Foglia and Richard P. Binzel at (5107) Laurenbacall also assumed a dark surface, so it could roughly be be a C asteroid .
The Italian astronomer Vincenzo Zappalà used a hierarchical cluster analysis in a publication from 1995 (et al.) To extrapolate the asteroid's membership of the Nysa family, a group of asteroids named after (44) Nysa . The group is also called the Hertha family, after (135) Hertha .
(3298) Massandra was named on February 6, 1993 after Massandra , a suburb of the spa and vacation resort Yalta , which is known for its winery .
See also
Web links
- (3298) Massandra in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (3298) Massandra in the Small-Body Database of the Jet Propulsion Laboratory (English).
- Discovery Circumstances by (3298) Massandra according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ (3298) Massandra at the IAU Minor Planet Center (English)
- ^ Gianluca Masi, Sergio Foglia, Richard P. Binzel: Search for Unusual Spectroscopic Candidates Among 40313 minor planets from the 3rd Release of the Sloan Digital Sky Survey Moving Object Catalog . (English)
- ↑ subdivision of asteroids to S-types, C-types and V-types (English)
- ↑ Database with the assignment of 12,487 asteroids to asteroid groups (English)