(20312) Danahy Main-belt Asteroid
Discovered on 31 March 1998 by LINEAR at Socorro.
Thomas Danahy mentored a finalist in the 2004 Intel Science Talent Search, a science competition for high school seniors. He teaches at the Nanuet High School, Nanuet, New York.Naming citation (20040415/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Danahy is today
Seen from above the solar system on 2026-10-14: Danahy is 2.11 au from the Sun and 1.14 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20312 |
| Provisional designation | 1998 FH118 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 4.57 hours |
| Absolute magnitude (H) | 14.27 |
| Orbital period | 3.79 years |
| Semi-major axis | 2.43 au |
| Perihelion – aphelion | 2.11 – 2.75 au |
| Eccentricity | 0.131 |
| Inclination | 5.70° |
| Closest distance between its orbit and Earth's (MOID) | 1.12 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Thomas
- (4008) Corbin
- (4739) Tomahrens
- (4830) Thomascooley
- (4897) Tomhamilton
- (5548) Thosharriot
- (6019) Telford
- (6361) Koppel
- (8236) Gainsborough
- (8382) Mann
- (8793) Thomasmuller
- (9460) McGlynn
- (9536) Statler
All asteroids named after someone called Thomas
Also discovered on 31 March 1998
- (9458) Beaumont
- (9459) Gracecai
- (11178) Emmajoy
- (11179) Ahmadperez
- (11180) Brentperlman
- (11697) Estrella
- (11698) Fichtelman
- (11701) Madeleineyang
- (11702) Mifischer
- (12506) Pariser
- (12508) Darcysloe
- (12509) Pathak