(30942) Helicaon Jupiter Trojan
Discovered on 8 February 1994 by E. W. Elst at La Silla.
Helicaon, a Trojan warrior, was the son of Antenor and the husband of Laodice, daughter of Priamos, king of Troy.Naming citation (20100726/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Helicaon is today
Seen from above the solar system on 2026-10-14: Helicaon is 4.90 au from the Sun and 4.64 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 30942 |
| Provisional designation | 1994 CX13 |
| Orbit class | Jupiter Trojan |
| Diameter | 32.5 km (#1,250 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0500 |
| Rotation period | 44.8 hours |
| Absolute magnitude (H) | 11.42 |
| Orbital period | 11.9 years |
| Semi-major axis | 5.21 au |
| Perihelion – aphelion | 4.86 – 5.55 au |
| Eccentricity | 0.0666 |
| Inclination | 22.9° |
| Closest distance between its orbit and Earth's (MOID) | 3.97 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 8 February 1994
- (7305) Ossakajusto
- (7435) Sagamihara
- (7436) Kuroiwa
- (10146) Mukaitadashi
- (11577) Einasto
- (11955) Russrobb
- (11956) Tamarakate
- (12366) Luisapla
- (12367) Ourinhos
- (12369) Pirandello
- (14479) Plekhanov
- (16675) Torii