(4493) Naitomitsu Main-belt Asteroid
Discovered on 14 October 1988 by T. Kojima at Chiyoda.
Mitsu Naito (b. 1925) is the mother of the first female Japanese astronaut, Chiaki Mukai. As “Mother of Astronauts”, she is deeply loved by all the Japanese astronauts.Naming citation (20080819/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Naitomitsu is today
Seen from above the solar system on 2026-10-14: Naitomitsu is 2.88 au from the Sun and 3.17 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4493 |
| Provisional designation | 1988 TG1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 16.8 km (#2,724 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.207 |
| Rotation period | 7.42 hours |
| Absolute magnitude (H) | 11.45 |
| Orbital period | 5.26 years |
| Semi-major axis | 3.02 au |
| Perihelion – aphelion | 2.80 – 3.25 au |
| Eccentricity | 0.0754 |
| Inclination | 9.03° |
| Closest distance between its orbit and Earth's (MOID) | 1.81 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by T. Kojima
- (3774) Megumi
- (3786) Yamada
- (3829) Gunma
- (3995) Sakaino
- (3998) Tezuka
- (3999) Aristarchus
- (4041) Miyamotoyohko
- (4156) Okadanoboru
- (4288) Tokyotech
- (4576) Yanotoyohiko
- (4632) Udagawa
- (4866) Badillo
← (4492) Debussy · (4494) Marimo →