(20410) Joosangyou Main-belt Asteroid
Discovered on 17 August 1998 by LINEAR at Socorro.
Joosang You (1978–2024) was a Korean amateur astronomer and director of the Hwacheon Chou Kyong Chol Observatory. He dedicated his life to science outreach, volunteering through lectures and projects for under-served youth, and led efforts to build a follow-up network for observations of minor bodies with the Korea Astronomy and Space Science Institute.Naming citation (WGSBN Bull. 6, #11, 19), IAU / Minor Planet Center, via NASA/JPL
Where Joosangyou is today
Seen from above the solar system on 2026-10-14: Joosangyou is 3.42 au from the Sun and 2.44 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20410 |
| Provisional designation | 1998 QM51 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 13.11 |
| Orbital period | 5.48 years |
| Semi-major axis | 3.11 au |
| Perihelion – aphelion | 2.76 – 3.46 au |
| Eccentricity | 0.112 |
| Inclination | 3.72° |
| Closest distance between its orbit and Earth's (MOID) | 1.75 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 17 August 1998
- (9474) Cassadrury
- (9476) Vincenthuang
- (9477) Kefennell
- (10635) Chiragkumar
- (11189) Rabeaton
- (11369) Brazelton
- (11370) Nabrown
- (11371) Camley
- (11372) Aditisingh
- (11373) Carbonaro
- (11737) Gregneat
- (12545) Taniamurphy