(1641) Tana
|
Asteroid (1641) Tana |
|
|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Eos family |
| Major semi-axis | 3.0181 AU |
| eccentricity | 0.1021 |
| Perihelion - aphelion | 2.7099 AU - 3.3263 AU |
| Inclination of the orbit plane | 9.3378 ° |
| Length of the ascending node | 331.6356 ° |
| Argument of the periapsis | 359.7630 ° |
| Sidereal period | 5.24 a |
| Mean orbital velocity | 17.15 km / s |
| Physical Properties | |
| Medium diameter | 25.66 km |
| Albedo | 0.0739 |
| Rotation period | 7.95 h |
| Absolute brightness | 10.5 mag |
| history | |
| Explorer | Cyril V. Jackson |
| Date of discovery | July 25, 1935 |
| Another name | 1935 OJ , 1930 QQ, 1951 RJ 1 , A909 SC |
| 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. | |
(1641) Tana is an asteroid of the main belt , which on 25 July 1935 by South African astronomer Cyril V. Jackson at the Union Observatory ( IAU code 078) in Johannesburg was discovered.
The asteroid belongs to the Eos family, a group of asteroids, which typically have large semiaxes from 2.95 to 3.1 AU , bounded inward by the Kirkwood gap of the 7: 3 resonance with Jupiter , and orbital inclinations between 8 ° and 12 °. The group is named after the asteroid (221) Eos . The family is believed to have emerged from a collision more than a billion years ago.
(1641) Tana is derived from the Kenyan river Tana .
See also
Web links
- Asteroid Tana: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- (1641) Tana in the Small-Body Database of the Jet Propulsion Laboratory (English).
- (1641) Tana in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
Individual evidence
- ↑ David Vokrouhlický , Miroslav Brož , Alessandro Morbidelli , William Bottke , David Nesvorný , Daniel Lazzaro, Andy Rivkin: Yarkovsky footprints in the Eos family ( PDF , English)
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)