(2102) Tantalus Apollo
Discovered on 27 December 1975 by C. T. Kowal at Palomar.
Where Tantalus is today
Seen from above the solar system on 2026-10-14: Tantalus is 1.65 au from the Sun and 1.60 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2102 |
| Provisional designation | 1975 YA |
| Orbit class | Apollo · near-Earth · potentially hazardous |
| Diameter | 1.65 km (#17,296 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.245 |
| Rotation period | 2.38 hours |
| Spectral type | Q |
| Absolute magnitude (H) | 15.99 |
| Orbital period | 1.47 years |
| Semi-major axis | 1.29 au |
| Perihelion – aphelion | 0.904 – 1.68 au |
| Eccentricity | 0.299 |
| Inclination | 64.0° |
| Closest distance between its orbit and Earth's (MOID) | 0.0426 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by C. T. Kowal
- (1876) Napolitania
- (1939) Loretta
- (1981) Midas
- (2060) Chiron
- (2063) Bacchus
- (2134) Dennispalm
- (2241) Alcathous
- (2340) Hathor
- (2594) Acamas
- (2629) Rudra
- (3163) Randi
← (2101) Adonis · (2103) Laverna →