(6149) Pelcak Main-belt Asteroid
Discovered on 25 September 1979 by A. Mrkos at Klet.
Oldřich Pelčák (b. 1943) has been a Czechoslovak astronaut-candidate, a member of a team of Czechoslovak astronauts with Vladimír Remek. The name was suggested by M. Tichy.Naming citation (20001111/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Pelcak is today
Seen from above the solar system on 2026-10-14: Pelcak is 2.43 au from the Sun and 3.19 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 6149 |
| Provisional designation | 1979 SS |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.96 km (#12,842 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.258 |
| Rotation period | 75.1 hours |
| Absolute magnitude (H) | 14.42 |
| Orbital period | 3.69 years |
| Semi-major axis | 2.39 au |
| Perihelion – aphelion | 1.97 – 2.80 au |
| Eccentricity | 0.175 |
| Inclination | 6.37° |
| Closest distance between its orbit and Earth's (MOID) | 0.964 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.