(19707) Tokunai
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Asteroid (19707) Tokunai |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt |
| Major semi-axis | 2.2515 AU |
| eccentricity | 0.1903 |
| Perihelion - aphelion | 1.8230 AU - 2.6801 AU |
| Inclination of the orbit plane | 4.6921 ° |
| Length of the ascending node | 81.3107 ° |
| Argument of the periapsis | 274.6661 ° |
| Sidereal period | 3.38 a |
| Mean orbital velocity | 19.84 km / s |
| Physical Properties | |
| Absolute brightness | 13.7 mag |
| history | |
| Explorer | T. Ōkuni |
| Date of discovery | October 8, 1999 |
| Another name | 1999 TZ 12 , 1982 VF 9 , 1992 QG 1 , 1998 HC 83 |
| 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. | |
(19707) Tokunai is an asteroid of the main belt , the October 8, 1999 by Japanese amateur astronomers Tomimaru Okuni at the Observatory of Nan'yō ( IAU code 358) in the Yamagata Prefecture was discovered.
The asteroid was named on July 13, 2004 after the Japanese samurai , geographer and explorer Mogami Tokunai (1755-1836), who explored and mapped Hokkaidō , Sakhalin and the Kuril Islands from 1785 to 1786 .
See also
Web links
- Asteroid Tokunai: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- (19707) Tokunai in the Small-Body Database of the Jet Propulsion Laboratory (English).
- (19707) Tokunai in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).