(7820) Ianlyon Main-belt Asteroid
Discovered on 14 October 1990 by A. Mrkos at Klet.
As a researcher at the University of Manchester (UK) Ian Lyon (b. 1957) studies the isotopic composition of meteorites to investigate the early Solar System and the origin of interstellar grains. Ian has been an associate editor of Meteoritics and Planetary Science.Naming citation (MPC batch dated 2018-05-29), IAU / Minor Planet Center, via NASA/JPL
Where Ianlyon is today
Seen from above the solar system on 2026-10-14: Ianlyon is 1.88 au from the Sun and 2.03 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 7820 |
| Provisional designation | 1990 TU8 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.29 km (#14,498 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.340 |
| Rotation period | 4.10 hours |
| Absolute magnitude (H) | 14.51 |
| Orbital period | 3.65 years |
| Semi-major axis | 2.37 au |
| Perihelion – aphelion | 1.82 – 2.92 au |
| Eccentricity | 0.233 |
| Inclination | 2.30° |
| Closest distance between its orbit and Earth's (MOID) | 0.807 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 14 October 1990
- (5622) Percyjulian
- (5647) Sarojininaidu
- (6447) Terrycole
- (6718) Beiglbock
- (7701) Zrzavy
- (8019) Karachkina
- (8020) Erzgebirge
- (8502) Bauhaus
- (8661) Ratzinger
- (10320) Reiland
- (11887) Echemmon
- (13055) Kreppein
More named asteroids discovered by A. Mrkos
- (2199) Klet
- (2304) Slavia
- (2325) Chernykh
- (2367) Praha
- (2403) Sumava
- (2404) Antarctica
- (2552) Remek
- (2559) Svoboda
- (2747) Cesky Krumlov
- (2811) Stremchovi
- (2889) Brno
- (2936) Nechvile
← (7818) Muirhead · (7824) Lynch →