(21449) Hemmick Main-belt Asteroid
Discovered on 20 April 1998 by LINEAR at Socorro.
Lucinda Hemmick mentored a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors. She teaches at the Longwood High School, Middle Island, New York.Naming citation (20050224/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Hemmick is today
Seen from above the solar system on 2026-10-14: Hemmick is 2.31 au from the Sun and 3.03 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21449 |
| Provisional designation | 1998 HQ22 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.05 |
| Orbital period | 3.49 years |
| Semi-major axis | 2.30 au |
| Perihelion – aphelion | 2.20 – 2.41 au |
| Eccentricity | 0.0456 |
| Inclination | 3.22° |
| Closest distance between its orbit and Earth's (MOID) | 1.19 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 20 April 1998
- (9461) Cotingkeh
- (9463) Criscione
- (11706) Rijeka
- (11710) Nataliehale
- (12086) Joshualevine
- (12087) Tiffanylin
- (12088) Macalintal
- (12089) Maichin
- (12514) Schommer
- (12516) Karenyoung
- (12855) Tewksbury
- (16944) Wangler