(21477) Terikdaly Main-belt Asteroid
Discovered on 23 April 1998 by LINEAR at Socorro.
Terik Daly (b. 1989) was awarded first place and Best in Category in the 2006 Intel International Science and Engineering Fair for his space science project. He attends the Oak Grove High School, San Jose, California, U.S.A.Naming citation (20060711/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Terikdaly is today
Seen from above the solar system on 2026-10-14: Terikdaly is 2.28 au from the Sun and 3.27 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21477 |
| Provisional designation | 1998 HX112 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.08 km (#15,023 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.170 |
| Absolute magnitude (H) | 14.93 |
| Orbital period | 4.09 years |
| Semi-major axis | 2.56 au |
| Perihelion – aphelion | 2.25 – 2.87 au |
| Eccentricity | 0.121 |
| Inclination | 11.6° |
| Closest distance between its orbit and Earth's (MOID) | 1.26 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 23 April 1998
- (9465) Fergusonsam
- (11367) Rachelseevers
- (11723) Briankennedy
- (12097) Peterlowen
- (12099) Meigooni
- (12525) Kathleenloia
- (19484) Vanessaspini
- (19487) Rosscoleman
- (19488) Abramcoley
- (20345) Davidvito
- (20346) Firre
- (20347) Wunderlich