(10265) Gunnarsson Outer Main-belt Asteroid
Discovered on 2 September 1978 by C.-I. Lagerkvist at La Silla.
Marcus Gunnarsson (b. 1971) is a planetary scientist at Uppsala Astronomical Observatory who specializes in studying the activity of distant comets.Naming citation (20020724/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Gunnarsson is today
Seen from above the solar system on 2026-10-14: Gunnarsson is 2.94 au from the Sun and 2.70 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10265 |
| Provisional designation | 1978 RY6 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 6.95 km (#7,719 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.401 |
| Absolute magnitude (H) | 12.64 |
| Orbital period | 5.79 years |
| Semi-major axis | 3.22 au |
| Perihelion – aphelion | 2.94 – 3.51 au |
| Eccentricity | 0.0884 |
| Inclination | 9.41° |
| Closest distance between its orbit and Earth's (MOID) | 1.97 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Marcus
All asteroids named after someone called Marcus
Also discovered on 2 September 1978
- (4310) Stromholm
- (7047) Lundstrom
- (8786) Belskaya
- (9265) Ekman
- (9266) Holger
- (9267) Lokrume
- (10013) Stenholm
- (10458) Sfranke
- (10997) Gahm
- (11256) Fuglesang
- (12663) Bjorkegren
- (13908) Wolbern