(225321) Stevenkoenig Main-belt Asteroid
Discovered on 6 December 1997 by ODAS at Caussols.
Steven Koenig (b. 1985) is the son of (15321) Donnadean. He is a moving force in the amateur astronomy community. He has been instrumental in the development of optical innovations which have advanced astrophototography, including the search for minor planets.Naming citation (WGSBN Bull. 2, #1, 8), IAU / Minor Planet Center, via NASA/JPL
Where Stevenkoenig is today
Seen from above the solar system on 2026-10-14: Stevenkoenig is 3.01 au from the Sun and 3.96 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 225321 |
| Provisional designation | 1997 XP7 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.69 km (#13,476 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0890 |
| Rotation period | 7.92 hours |
| Absolute magnitude (H) | 16.0 |
| Orbital period | 3.90 years |
| Semi-major axis | 2.48 au |
| Perihelion – aphelion | 1.95 – 3.01 au |
| Eccentricity | 0.215 |
| Inclination | 15.1° |
| Closest distance between its orbit and Earth's (MOID) | 0.988 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Steven
- (5129) Groom
- (6403) Steverin
- (6544) Stevendick
- (8195) Tamkin
- (9280) Stevenjoy
- (9926) Desch
- (10044) Squyres
- (10596) Stevensimpson
- (12104) Chesley
- (13415) Stevenbland
- (14438) MacLean
- (15941) Stevegauthier
All asteroids named after someone called Steven