(5138) Gyoda
Asteroid (5138) Gyoda |
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Properties of the orbit ( animation ) | |
Orbit type | Main belt asteroid |
Asteroid family | Themis family |
Major semi-axis | 3.0980 AU |
eccentricity | 0.1700 |
Perihelion - aphelion | 2.5714 AU - 3.6245 AU |
Inclination of the orbit plane | 0.8009 ° |
Length of the ascending node | 193.6688 ° |
Argument of the periapsis | 261.4811 ° |
Sidereal period | 5.45 a |
Mean orbital velocity | 16.92 km / s |
Physical Properties | |
Absolute brightness | 12.5 mag |
history | |
Explorer |
Tsutomu Hioki Shūji Hayakawa |
Date of discovery | November 13, 1990 |
Another name | 1990 VD 2 , 1957 VB, 1987 HX |
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. |
(5138) Gyoda is an asteroid of the main belt , which on 13 November 1990 by the Japanese astronomer Tsutomu Hioki and Shuji Hayakawa at the observatory in Okutama ( IAU code 877) in Tokyo was discovered.
The asteroid belongs to the Themis family, a group of asteroids named after (24) Themis .
(5138) Gyoda was named after the city of Gyōda in the north of Saitama Prefecture .
See also
Individual evidence
- ↑ The family affiliation of (5138) Gyoda in the AstDyS-2 database (English)
Web links
- Asteroid Gyoda: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- Asteroid Gyoda in the Small-Body Database of NASA's Jet Propulsion Laboratory at the California Institute of Technology, Pasadena, USA
- (5138) Gyoda in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).