(21126) Katsuyoshi Main-belt Asteroid
Discovered on 19 January 1993 by T. Seki at Geisei.
Katsuyoshi Yoshimi (b. 1951) is an amateur astrophotographer and has contributed to many minor-planet discoveries at Geisei Observatory by hyper-sensitizing films for use at the observatory.Naming citation (20110517/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Katsuyoshi is today
Seen from above the solar system on 2026-10-14: Katsuyoshi is 2.64 au from the Sun and 3.25 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21126 |
| Provisional designation | 1993 BJ2 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 5.84 hours |
| Absolute magnitude (H) | 13.61 |
| Orbital period | 3.74 years |
| Semi-major axis | 2.41 au |
| Perihelion – aphelion | 2.09 – 2.73 au |
| Eccentricity | 0.134 |
| Inclination | 6.98° |
| Closest distance between its orbit and Earth's (MOID) | 1.07 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 19 January 1993
More named asteroids discovered by T. Seki
- (2396) Kochi
- (2571) Geisei
- (2582) Harimaya-Bashi
- (2621) Goto
- (2835) Ryoma
- (2880) Nihondaira
- (2961) Katsurahama
- (3150) Tosa
- (3182) Shimanto
- (3262) Miune
- (3431) Nakano
- (3785) Kitami
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