(3457) Arnenordheim Main-belt Asteroid
Discovered on 5 September 1985 by H. Debehogne at La Silla.
The Norwegian composer Arne Nordheim (b. 1931) is one of the most influential musical voices of his country, and he has achieved wide international acclaim. He has on several occasions found inspiration in the heavens, as in his Celestial Mechanics, written for the opening ceremony of the 1994 Olympic Winter Games in Lillehammer.Naming citation (20010705/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Arnenordheim is today
Seen from above the solar system on 2026-10-14: Arnenordheim is 2.99 au from the Sun and 3.82 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3457 |
| Provisional designation | 1985 RA3 |
| Orbit class | Main-belt Asteroid |
| Diameter | 12.7 km (#3,824 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.181 |
| Absolute magnitude (H) | 12.18 |
| Orbital period | 4.83 years |
| Semi-major axis | 2.86 au |
| Perihelion – aphelion | 2.71 – 3.01 au |
| Eccentricity | 0.0529 |
| Inclination | 3.25° |
| Closest distance between its orbit and Earth's (MOID) | 1.69 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Arne
All asteroids named after someone called Arne
Also discovered on 5 September 1985
- (3456) Etiennemarey
- (4599) Rowan
- (4627) Pinomogavero
- (8818) Hermannbondi
- (20992) Marypearse
- (20993) Virginiediscry
- (48411) Johnventre