(15917) Rosahavel Main-belt Asteroid
Discovered on 28 October 1997 by L. Sarounova at Ondrejov.
Josef Havel (1930-2008) was a significant personality in Czech rose breeding. A diligent and modest man, he detected and preserved several color mutations and obtained numerous awards in international rose contests, including the gold medal in Rome for Nette Ingeborg.Naming citation (20090409/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Rosahavel is today
Seen from above the solar system on 2026-10-14: Rosahavel is 2.41 au from the Sun and 3.07 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 15917 |
| Provisional designation | 1997 UX7 |
| Orbit class | Main-belt Asteroid |
| Diameter | 10.8 km (#4,664 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0720 |
| Rotation period | 10.2 hours |
| Absolute magnitude (H) | 13.7 |
| Orbital period | 4.66 years |
| Semi-major axis | 2.79 au |
| Perihelion – aphelion | 2.23 – 3.35 au |
| Eccentricity | 0.199 |
| Inclination | 7.10° |
| Closest distance between its orbit and Earth's (MOID) | 1.26 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Josef
- (3887) Gerstner
- (4176) Sudek
- (4663) Falta
- (5552) Studnicka
- (7699) Bozek
- (9872) Solf
- (10919) Pepikzicha
- (12320) Loschmidt
- (14056) Kainar
- (14948) Bartuska
- (17625) Joseflada
- (19268) Morstadt
All asteroids named after someone called Josef