(3914) Kotogahama Main-belt Asteroid
Discovered on 16 September 1987 by T. Seki at Geisei.
Where Kotogahama is today
Seen from above the solar system on 2026-10-14: Kotogahama is 3.16 au from the Sun and 3.88 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3914 |
| Provisional designation | 1987 SE |
| Orbit class | Main-belt Asteroid |
| Diameter | 14.9 km (#3,171 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.201 |
| Rotation period | 16.7 hours |
| Absolute magnitude (H) | 11.87 |
| Orbital period | 5.25 years |
| Semi-major axis | 3.02 au |
| Perihelion – aphelion | 2.80 – 3.25 au |
| Eccentricity | 0.0745 |
| Inclination | 9.35° |
| Closest distance between its orbit and Earth's (MOID) | 1.79 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.