(1583) Antilochus Jupiter Trojan
Discovered on 19 September 1950 by S. J. Arend at Uccle.
Where Antilochus is today
Seen from above the solar system on 2026-10-14: Antilochus is 5.41 au from the Sun and 6.39 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1583 |
| Provisional designation | 1950 SA |
| Orbit class | Jupiter Trojan |
| Diameter | 109 km (#202 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0540 |
| Rotation period | 15.8 hours |
| Spectral type | D |
| Absolute magnitude (H) | 8.54 |
| Orbital period | 11.7 years |
| Semi-major axis | 5.15 au |
| Perihelion – aphelion | 4.88 – 5.43 au |
| Eccentricity | 0.0529 |
| Inclination | 28.5° |
| Closest distance between its orbit and Earth's (MOID) | 3.89 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 19 September 1950
More named asteroids discovered by S. J. Arend
- (1127) Mimi
- (1171) Rusthawelia
- (1262) Sniadeckia
- (1263) Varsavia
- (1281) Jeanne
- (1286) Banachiewicza
- (1287) Lorcia
- (1313) Berna
- (1314) Paula
- (1315) Bronislawa
- (1348) Michel
- (1352) Wawel
← (1582) Martir · (1584) Fuji →