(2816) Pien
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Asteroid (2816) Pien |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.7268 AU |
| eccentricity | 0.1877 |
| Perihelion - aphelion | 2.2151 AU - 3.2385 AU |
| Inclination of the orbit plane | 7.7175 ° |
| Length of the ascending node | 93.9548 ° |
| Argument of the periapsis | 263.4318 ° |
| Sidereal period | 4.50 a |
| Mean orbital velocity | 18.04 km / s |
| Physical Properties | |
| Medium diameter | 21.91 km (± 1.8) |
| Albedo | 0.0769 |
| Rotation period | 80.315 h |
| Absolute brightness | 11.9 likes |
| Spectral class | SMASSII : B |
| history | |
| Explorer | Edward LG Bowell |
| Date of discovery | 22nd September 1982 |
| Another name | 1982 SO , 1950 NG, 1951 YX, 1955 TU, 1959 ND, 1964 RL, 1964 TQ 2 , 1976 JW 2 , 1978 YS |
| 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. | |
(2816) Pien is an asteroid of the main belt , the American US on 22 September 1982 by the astronomer Edward LG Bowell at the Anderson Mesa Station ( Observatories Code 688) of the Lowell Observatory in Coconino County was discovered.
The asteroid is named after the Belgian weather announcer Armand Pien (1920–2003), who presented the weather for 37 years and was popular for his entertaining lecture.
See also
Web links
- Asteroid Pien: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- (2816) Pien in the Small-Body Database of the Jet Propulsion Laboratory (English).
- (2816) Pien in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).