(5139) Rumoi Main-belt Asteroid
Discovered on 13 November 1990 by Mukai, M., Takeishi, M. at Kagoshima.
Where Rumoi is today
Seen from above the solar system on 2026-10-14: Rumoi is 2.85 au from the Sun and 3.84 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5139 |
| Provisional designation | 1990 VH4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 12.0 km (#4,105 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.409 |
| Rotation period | 3.26 hours |
| Absolute magnitude (H) | 12.11 |
| Orbital period | 4.82 years |
| Semi-major axis | 2.85 au |
| Perihelion – aphelion | 2.76 – 2.95 au |
| Eccentricity | 0.0328 |
| Inclination | 2.84° |
| Closest distance between its orbit and Earth's (MOID) | 1.74 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 13 November 1990
- (4718) Araki
- (4805) Asteropaios
- (5138) Gyoda
- (5191) Paddack
- (5214) Oozora
- (5238) Naozane
- (6195) Nukariya
- (6246) Komurotoru
- (13057) Jorgensen
- (23475) Nakazawa
- (43793) Mackey
- (65688) Jarnac
More named asteroids discovered by Mukai, M., Takeishi, M.
- (4703) Kagoshima
- (5286) Haruomukai
- (5468) Hamatonbetsu
- (5640) Yoshino
- (5960) Wakkanai
- (8866) Tanegashima
- (9368) Esashi
- (10516) Sakurajima
- (11064) Dogen
- (14446) Kinkowan
- (15790) Keizan
- (48498) Murahashi
← (5138) Gyoda · (5140) Kida →