(284357) Semseyandor Main-belt Asteroid
Discovered on 23 September 2006 by Sarneczky, K., Kuli, Z. at Piszkesteto.
Andor Semsey (1833–1923) was a landowner, a naturalist and a patron of Hungarian science. His interests were mainly in mineralogy and geology, and he purchased numerous mineral and rock collections for museums. He created the National Museum meteorite collection and supported numerous scientific expeditions.Naming citation (WGSBN Bull. 4, #11, 20), IAU / Minor Planet Center, via NASA/JPL
Where Semseyandor is today
Seen from above the solar system on 2026-10-14: Semseyandor is 3.35 au from the Sun and 4.29 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 284357 |
| Provisional designation | 2006 SA78 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.75 km (#13,323 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0480 |
| Absolute magnitude (H) | 16.12 |
| Orbital period | 5.70 years |
| Semi-major axis | 3.19 au |
| Perihelion – aphelion | 2.86 – 3.52 au |
| Eccentricity | 0.102 |
| Inclination | 11.1° |
| Closest distance between its orbit and Earth's (MOID) | 1.86 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Andor
All asteroids named after someone called Andor
Also discovered on 23 September 2006
- (181392) Katonajozsef
- (185150) Panevezys
- (212587) Bartasiute
- (299897) Skipitis
- (319636) Dziewulski
- (358179) Szegokaroly
- (406006) Ralys