(3686) Antoku Main-belt Asteroid
Discovered on 3 March 1987 by Niijima, T., Urata, T. at Ojima.
Where Antoku is today
Seen from above the solar system on 2026-10-14: Antoku is 3.09 au from the Sun and 2.40 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3686 |
| Provisional designation | 1987 EB |
| Orbit class | Main-belt Asteroid |
| Diameter | 17.7 km (#2,539 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0590 |
| Rotation period | 6.73 hours |
| Spectral type | X |
| Absolute magnitude (H) | 12.52 |
| Orbital period | 4.53 years |
| Semi-major axis | 2.74 au |
| Perihelion – aphelion | 2.33 – 3.14 au |
| Eccentricity | 0.148 |
| Inclination | 5.73° |
| Closest distance between its orbit and Earth's (MOID) | 1.34 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 3 March 1987
More named asteroids discovered by Niijima, T., Urata, T.
- (3565) Ojima
- (3585) Goshirakawa
- (4375) Kiyomori
- (4376) Shigemori
- (4377) Koremori
- (4402) Tsunemori
- (4574) Yoshinaka
- (4767) Sutoku
- (4896) Tomoegozen
- (5578) Takakura
- (5830) Simohiro
- (5912) Oyatoshiyuki
← (3685) Derdenye · (3687) Dzus →