(1863) Antinous Apollo
Discovered on 7 March 1948 by C. A. Wirtanen at Mount Hamilton.
Where Antinous is today
Seen from above the solar system on 2026-10-14: Antinous is 1.41 au from the Sun and 0.858 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1863 |
| Provisional designation | 1948 EA |
| Orbit class | Apollo · near-Earth |
| Diameter | 2.10 km (#16,927 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.240 |
| Rotation period | 7.45 hours |
| Spectral type | SU |
| Absolute magnitude (H) | 15.32 |
| Orbital period | 3.40 years |
| Semi-major axis | 2.26 au |
| Perihelion – aphelion | 0.890 – 3.63 au |
| Eccentricity | 0.606 |
| Inclination | 18.4° |
| Closest distance between its orbit and Earth's (MOID) | 0.188 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by C. A. Wirtanen
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