9971 Ishihara
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Orbit of 9971 Ishihara (blue), planets (red) and the Sun (black). The outermost planet visible is Jupiter. | |||||||||||||
| Discovery and designation | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Discovered by | K. Endate & K. Watanabe | ||||||||||||
| Discovery date | April 16, 1993 | ||||||||||||
| Designations | |||||||||||||
| MPC designation | 9971 Ishihara | ||||||||||||
| 1993 HS, 1991 YC2, 1996 EU1 | |||||||||||||
| Orbital characteristics | |||||||||||||
| Epoch October 27, 2007 | |||||||||||||
| Aphelion | 2.4464386 AU | ||||||||||||
| Perihelion | 1.916677 AU | ||||||||||||
| 2.1815578 AU | |||||||||||||
| Eccentricity | 0.1214182 | ||||||||||||
| 1176.9242810 d | |||||||||||||
| 137.46549° | |||||||||||||
| Inclination | 2.74863° | ||||||||||||
| 20.62299° | |||||||||||||
| 245.92258° | |||||||||||||
| Physical characteristics | |||||||||||||
| Dimensions | ~22.4 km[1] | ||||||||||||
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| 13.9 | |||||||||||||
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9971 Ishihara is a main belt asteroid. It orbits the Sun once every 3.22 years.[2]
Discovered on April 16, 1993 by K. Endate and K. Watanabe it was given the provisional designation 1993 HS. It was later renamed Ishihara after Takahiro Ishihara, a former president of the Hiroshima Astronomical Society.[3]
References
- ↑ Tedesco E.F., Noah P.V., Noah M., Price S.D. "The supplemental IRAS minor planet survey (SIMPS)".
- ↑ "9971 Ishihara (1993 HS)". JPL Small-Body Database Browser.
- ↑ MPC 47298 Minor Planet Center
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