(12856) Autridas Main-belt Asteroid
Discovered on 21 April 1998 by LINEAR at Socorro.
Autri A. Das (b. 2006) was a finalist in the 2019 Broadcom MASTERS, a math and science competition for middle-school students, for her chemistry project. She attended the Stoller Middle School, Portland, Oregon.Naming citation (WGSBN Bull. 3, #1, 8), IAU / Minor Planet Center, via NASA/JPL
Where Autridas is today
Seen from above the solar system on 2026-10-14: Autridas is 2.16 au from the Sun and 2.95 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12856 |
| Provisional designation | 1998 HH93 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.73 km (#11,166 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.262 |
| Absolute magnitude (H) | 13.99 |
| Orbital period | 3.23 years |
| Semi-major axis | 2.18 au |
| Perihelion – aphelion | 2.03 – 2.34 au |
| Eccentricity | 0.0707 |
| Inclination | 2.41° |
| Closest distance between its orbit and Earth's (MOID) | 1.05 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 21 April 1998
- (9244) Visnjan
- (11715) Harperclark
- (11716) Amahartman
- (11718) Hayward
- (11719) Hicklen
- (11720) Horodyskyj
- (11721) Shawnlowe
- (11724) Ronaldhsu
- (11725) Victoriahsu
- (12091) Jesmalmquist
- (12092) Erinorourke
- (12093) Chrimatthews