(3640) Gostin Main-belt Asteroid
Discovered on 11 October 1985 by C. S. Shoemaker at Palomar.
Where Gostin is today
Seen from above the solar system on 2026-10-14: Gostin is 2.19 au from the Sun and 3.07 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3640 |
| Provisional designation | 1985 TR3 |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.15 km (#7,462 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.239 |
| Rotation period | 3.26 hours |
| Spectral type | S |
| Absolute magnitude (H) | 12.61 |
| Orbital period | 3.32 years |
| Semi-major axis | 2.23 au |
| Perihelion – aphelion | 2.03 – 2.42 au |
| Eccentricity | 0.0863 |
| Inclination | 4.31° |
| Closest distance between its orbit and Earth's (MOID) | 1.05 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 11 October 1985
- (3793) Leonteus
- (4253) Marker
- (4892) Chrispollas
- (5023) Agapenor
- (6543) Senna
- (12227) Penney
- (27706) Strogen