(3240) Laocoon Jupiter Trojan
Discovered on 7 November 1978 by Helin, E. F., Bus, S. J. at Palomar.
Where Laocoon is today
Seen from above the solar system on 2026-10-14: Laocoon is 5.43 au from the Sun and 4.82 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3240 |
| Provisional designation | 1978 VG6 |
| Orbit class | Jupiter Trojan |
| Diameter | 51.7 km (#713 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0600 |
| Rotation period | 11.3 hours |
| Absolute magnitude (H) | 10.28 |
| Orbital period | 11.9 years |
| Semi-major axis | 5.22 au |
| Perihelion – aphelion | 4.56 – 5.88 au |
| Eccentricity | 0.127 |
| Inclination | 2.34° |
| Closest distance between its orbit and Earth's (MOID) | 3.54 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 7 November 1978
- (2324) Janice
- (2440) Educatio
- (2499) Brunk
- (2611) Boyce
- (2725) David Bender
- (2925) Beatty
- (3449) Abell
- (3651) Friedman
- (3718) Dunbar
- (3926) Ramirez
- (4012) Geballe
- (4069) Blakee