(9800) Shigetoshi Main-belt Asteroid
Discovered on 4 March 1997 by T. Kobayashi at Oizumi.
Shigetoshi Inoue (b. 1961) is a Japanese amateur astronomer and a key member of Ota Astronomical Club. He is passionate about disseminating astronomy to the public. His commentary on constellations has been familiar to children at observing events.Naming citation (MPC batch dated 2015-01-05), IAU / Minor Planet Center, via NASA/JPL
Where Shigetoshi is today
Seen from above the solar system on 2026-10-14: Shigetoshi is 2.17 au from the Sun and 3.14 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9800 |
| Provisional designation | 1997 ES2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.16 km (#12,363 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.234 |
| Absolute magnitude (H) | 14.6 |
| Orbital period | 3.65 years |
| Semi-major axis | 2.37 au |
| Perihelion – aphelion | 1.90 – 2.85 au |
| Eccentricity | 0.201 |
| Inclination | 3.08° |
| Closest distance between its orbit and Earth's (MOID) | 0.879 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 4 March 1997
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- (9437) Hironari
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- (15887) Daveclark
- (17694) Jiranek
- (18561) Fengningding
- (20205) Sitanchen
- (21351) Bhagwat
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