(580311) Saselemer Main-belt Asteroid
Discovered on 31 January 2011 by Z. Kuli K. Sárneczky at PiszkéstetÅ.
Elemér Sas (1930–1998) was a Hungarian physicist, teacher and science communicator. His university lectures with spectacular experiments are remembered to this day. He hosted many popular TV series, and his pleasant voice and interesting experiments attracted many spectators among science lovers.Naming citation (WGSBN Bull. 5, #15, 19), IAU / Minor Planet Center, via NASA/JPL
Where Saselemer is today
Seen from above the solar system on 2026-10-14: Saselemer is 2.41 au from the Sun and 2.41 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 580311 |
| Provisional designation | 2015 BZ254 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 17.49 |
| Orbital period | 4.03 years |
| Semi-major axis | 2.53 au |
| Perihelion – aphelion | 2.41 – 2.65 au |
| Eccentricity | 0.0474 |
| Inclination | 13.6° |
| Closest distance between its orbit and Earth's (MOID) | 1.44 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.