(8393) Tetsumasakamoto Main-belt Asteroid
Discovered on 15 October 1993 by Endate, K., Watanabe, K. at Kitami.
Tetsuma Sakamoto (b. 1908), Japanese agricultural scientist and specialist in sericultural technology, has been an amateur astronomer since 1923. He has enthusiastically observed sunspots, meteors, zodiacal light, the gegenschein and artificial satellites.Naming citation (20000320/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Tetsumasakamoto is today
Seen from above the solar system on 2026-10-14: Tetsumasakamoto is 2.45 au from the Sun and 3.41 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8393 |
| Provisional designation | 1993 TJ1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.25 km (#10,141 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.305 |
| Rotation period | 6.32 hours |
| Absolute magnitude (H) | 14.37 |
| Orbital period | 3.43 years |
| Semi-major axis | 2.27 au |
| Perihelion – aphelion | 1.83 – 2.71 au |
| Eccentricity | 0.193 |
| Inclination | 6.01° |
| Closest distance between its orbit and Earth's (MOID) | 0.831 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 15 October 1993
- (6340) Kathmandu
- (6412) Kaifu
- (6413) Iye
- (6981) Chirman
- (7133) Kasahara
- (7254) Kuratani
- (9632) Sudo
- (10561) Shimizumasahiro
- (11087) Yamasakimakoto
- (12362) Mumuryk
- (13582) Tominari
- (15791) Yoshiewatanabe
More named asteroids discovered by Endate, K., Watanabe, K.
- (4042) Okhotsk
- (4126) Mashu
- (4460) Bihoro
- (4491) Otaru
- (4497) Taguchi
- (4508) Takatsuki
- (4547) Massachusetts
- (4585) Ainonai
- (4607) Seilandfarm
- (4641) Ayako
- (4712) Iwaizumi
- (4773) Hayakawa
← (8391) Kring · (8395) Rembaut →