(9517) Niehaisheng
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Asteroid (9517) Niehaisheng |
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| Properties of the orbit ( animation ) | |
| Orbit type | Middle main belt asteroid |
| Major semi-axis | 2.6096 AU |
| eccentricity | 0.2290 |
| Perihelion - aphelion | 2.0120 AU - 3.2072 AU |
| Inclination of the orbit plane | 5.8041 ° |
| Length of the ascending node | 49.9798 ° |
| Argument of the periapsis | 329.1996 ° |
| Time of passage of the perihelion | December 6, 2019 |
| Sidereal period | 4.22 a |
| Mean orbital velocity | 18.19 km / s |
| Physical Properties | |
| Medium diameter | 7.238 (± 2.297) km |
| Albedo | 0.077 (± 0.033) |
| Absolute brightness | 14.1 mag |
| history | |
| Explorer | Observatory on the purple mountain |
| Date of discovery | 3rd November 1977 |
| Another name | 1977 VL 1 , 1970 AN, 4318 T-1 |
| 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. | |
(9517) Niehaisheng is an asteroid located in the main middle belt . It was discovered on November 3, 1977 at the Observatory on Purple Mountain ( IAU code 330) in Nanjing . The asteroid had already been sighted: on January 4, 1970 under the provisional designation 1970 AN at the Crimean Observatory in Nautschnyj and on March 24 and 26, 1971 (4318 T-1) during the First Trojan Survey .
The mean diameter of the asteroid was roughly calculated as 7.238 (± 2.297) km , the albedo as 0.077 (± 0.033).
In the AstDyS-2 database, the (9517) Niehaisheng was assigned to an unconfirmed, small asteroid family in which the asteroid (8905) Bankakuko was specified as the parent body . According to the more recent definition (9517) Niehaisheng could not be assigned to any asteroid family.
The asteroid was named on December 15, 2005 after the Chinese Taikonaut Nie Haisheng , who made China's first multi-day space flight from October 12 to 17, 2005 together with Fei Junlong . On December 15, 2005, an asteroid was named after Fei Junlong: (9512) Feijunlong .
See also
Web links
- (9517) Niehaisheng in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (9517) Niehaisheng in the Small-Body Database of the Jet Propulsion Laboratory of NASA at the California Institute of Technology (Caltech) in Pasadena , California (English)
- Discovery Circumstances of (9517) Niehaisheng according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ Observations by (9517) Niehaisheng on minorplanetcenter.net (English)