(20766) Yoonsoobach Main-belt Asteroid
Discovered on 1 August 2000 by LINEAR at Socorro.
Yoonsoo P. Bach (b. 1993) is a Korean researcher at the Korea Astronomy and Space Science Institute, South Korea. His work focuses on the physical properties of airless Solar System bodies, especially the thermal behavior of asteroids, and their light scattering, as well as data-reduction pipelines for ground and space telescopes.Naming citation (WGSBN Bull. 6, #11, 38), IAU / Minor Planet Center, via NASA/JPL
Where Yoonsoobach is today
Seen from above the solar system on 2026-10-14: Yoonsoobach is 2.85 au from the Sun and 3.66 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20766 |
| Provisional designation | 2000 PK11 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.32 km (#12,009 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.261 |
| Absolute magnitude (H) | 14.25 |
| Orbital period | 4.03 years |
| Semi-major axis | 2.53 au |
| Perihelion – aphelion | 2.21 – 2.85 au |
| Eccentricity | 0.127 |
| Inclination | 14.5° |
| Closest distance between its orbit and Earth's (MOID) | 1.22 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 1 August 2000
- (18155) Jasonschuler
- (18157) Craigwright
- (18158) Nigelreuel
- (18159) Andrewcook
- (18162) Denlea
- (18163) Jennalewis
- (19775) Medmondson
- (22109) Loriehutch
- (32264) Cathjesslai
- (32267) Hermannweyl
- (32275) Limichael
- (32276) Allenliu