(12057) Alfredsturm Main-belt Asteroid
Discovered on 18 February 1998 by Starkenburg at Heppenheim.
German amateur astronomer Alfred Sturm (b. 1924) was one of the founders and has been president of the Starkenburg Observatory since its beginnings in 1970. Sturm is heavily involved in astronomical public education.Naming citation (20010309/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Alfredsturm is today
Seen from above the solar system on 2026-10-14: Alfredsturm is 2.07 au from the Sun and 3.03 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12057 |
| Provisional designation | 1998 DK1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.19 km (#14,723 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.144 |
| Absolute magnitude (H) | 15.04 |
| Orbital period | 3.17 years |
| Semi-major axis | 2.16 au |
| Perihelion – aphelion | 2.04 – 2.27 au |
| Eccentricity | 0.0524 |
| Inclination | 2.35° |
| Closest distance between its orbit and Earth's (MOID) | 1.06 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Alfred
- (7750) McEwen
- (8282) Delp
- (9683) Rambaldo
- (11422) Alilienthal
- (11519) Adler
- (11765) Alfredfowler
- (11769) Alfredjoy
- (13058) Alfredstevens
- (13672) Tarski
- (14331) Alyankovic
- (24907) Alfredhaar
- (29227) Wegener
All asteroids named after someone called Alfred
Also discovered on 18 February 1998
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- (10932) Rebentrost
- (16906) Giovannisilva
- (29555) MACEK
- (48844) Belloves
- (100731) Ara Pacis
- (100733) Annafalcka
- (100734) Annasvidnicka
- (155438) Velasquez
- (175730) Gramastetten