(21229) Susil Main-belt Asteroid
Discovered on 22 September 1995 by L. Sarounova at Ondrejov.
František Sušil (1804–1868), a great collector of Moravian folk songs, published almost 2400 songs in his compilation Moravské národní písně (Moravian Folk Songs). By walking the length and breadth of Moravia, he was able to record both lyrics and music directly from the local people. The name was suggested by L. Vašta.Naming citation (WGSBN Bull. 3, #13, 8), IAU / Minor Planet Center, via NASA/JPL
Where Susil is today
Seen from above the solar system on 2026-10-14: Susil is 2.73 au from the Sun and 2.96 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21229 |
| Provisional designation | 1995 SM1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.94 km (#12,876 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0540 |
| Rotation period | 6.11 hours |
| Absolute magnitude (H) | 16.08 |
| Orbital period | 4.28 years |
| Semi-major axis | 2.64 au |
| Perihelion – aphelion | 2.42 – 2.85 au |
| Eccentricity | 0.0827 |
| Inclination | 1.14° |
| Closest distance between its orbit and Earth's (MOID) | 1.41 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 22 September 1995
- (8897) Defelice
- (8899) Hughmiller
- (12415) Wakatatakayo
- (12788) Shigeno
- (18467) Nagatatsu
- (20113) Uckert
- (23583) Krivsky
- (24829) Berounurbi