(21257) Jizni Cechy Main-belt Asteroid
Discovered on 26 February 1996 by Klet at Klet.
Jižní Čechy (South Bohemia) is a region of the Czech Republic known for its pleasant landscape, historical towns and castles, picturesque rivers and ponds. There the Klet Observatory is situated. The name was suggested by J. Ticha and M. Tichy.Naming citation (20010509/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Jizni Cechy is today
Seen from above the solar system on 2026-10-14: Jizni Cechy is 2.94 au from the Sun and 3.81 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21257 |
| Provisional designation | 1996 DS2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.30 km (#6,307 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0540 |
| Absolute magnitude (H) | 14.44 |
| Orbital period | 5.06 years |
| Semi-major axis | 2.95 au |
| Perihelion – aphelion | 2.88 – 3.01 au |
| Eccentricity | 0.0220 |
| Inclination | 12.8° |
| Closest distance between its orbit and Earth's (MOID) | 1.92 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.