(34996) Mitokoumon Main-belt Asteroid
Discovered on 18 February 1977 by Kosai, H., Hurukawa, K. at Kiso.
Mitokoumon is a popular name of Mitsukuni Tokugara (1628–1701), a vice Shogun of the Tokugawa family and a lord of the Mito domain.Naming citation (WGSBN Bull. 4, #12, 5), IAU / Minor Planet Center, via NASA/JPL
Where Mitokoumon is today
Seen from above the solar system on 2026-10-14: Mitokoumon is 2.48 au from the Sun and 3.28 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 34996 |
| Provisional designation | 1977 DH4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.17 km (#12,354 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.233 |
| Absolute magnitude (H) | 14.25 |
| Orbital period | 4.13 years |
| Semi-major axis | 2.58 au |
| Perihelion – aphelion | 2.16 – 3.00 au |
| Eccentricity | 0.163 |
| Inclination | 11.5° |
| Closest distance between its orbit and Earth's (MOID) | 1.20 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 18 February 1977
- (2330) Ontake
- (2924) Mitake-mura
- (2960) Ohtaki
- (3249) Musashino
- (3391) Sinon
- (3607) Naniwa
- (4186) Tamashima
- (4812) Hakuhou
- (4963) Kanroku
- (5017) Tenchi
- (5082) Nihonsyoki
- (7104) Manyousyu