(3581) Alvarez Mars-crossing Asteroid
Discovered on 23 April 1985 by C. S. Shoemaker at Palomar.
Where Alvarez is today
Seen from above the solar system on 2026-10-14: Alvarez is 2.61 au from the Sun and 3.57 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3581 |
| Provisional designation | 1985 HC |
| Orbit class | Mars-crossing Asteroid |
| Rotation period | 33.4 hours |
| Spectral type | B |
| Absolute magnitude (H) | 12.29 |
| Orbital period | 4.62 years |
| Semi-major axis | 2.77 au |
| Perihelion – aphelion | 1.65 – 3.90 au |
| Eccentricity | 0.406 |
| Inclination | 28.9° |
| Closest distance between its orbit and Earth's (MOID) | 0.830 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 23 April 1985
More named asteroids discovered by C. S. Shoemaker
- (2459) Spellmann
- (2511) Patterson
- (2532) Sutton
- (2586) Matson
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- (2686) Linda Susan
- (2705) Wu
- (2742) Gibson
- (2748) Patrick Gene
- (2773) Brooks
- (2834) Christy Carol
- (2891) McGetchin
← (3580) Avery · (3582) Cyrano →