(311119) Pacner Main-belt Asteroid
Discovered on 8 August 2004 by KLENOT at Klet.
Karel Pacner (1936–2021) was a Czech science journalist and writer interested in cosmonautics. He attended the 1969 launch of Apollo 11 as the only Czech journalist. Pacner correctly described events and people from both the Soviet and American sides of the space race, as well as later cooperation in space.Naming citation (WGSBN Bull. 1, #3, 13), IAU / Minor Planet Center, via NASA/JPL
Where Pacner is today
Seen from above the solar system on 2026-10-14: Pacner is 2.57 au from the Sun and 1.67 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 311119 |
| Provisional designation | 2004 PA20 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.91 km (#15,417 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0630 |
| Absolute magnitude (H) | 16.46 |
| Orbital period | 5.46 years |
| Semi-major axis | 3.10 au |
| Perihelion – aphelion | 2.55 – 3.65 au |
| Eccentricity | 0.178 |
| Inclination | 5.69° |
| Closest distance between its orbit and Earth's (MOID) | 1.54 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Karel
- (5514) Karelraska
- (6379) Vrba
- (7226) Kryl
- (11431) Karelbosscha
- (12160) Karelwakker
- (16951) Carolus Quartus
- (17407) Teige
- (19291) Karelzeman
- (21801) Ancerl
- (22465) Karelandel
- (22505) Lewit
- (29674) Rausal
All asteroids named after someone called Karel