(18180) Irenesun Main-belt Asteroid
Discovered on 25 August 2000 by LINEAR at Socorro.
Irene Yuan Sun (b. 1986) was awarded second place in the 2003 Intel International Science and Engineering Fair for her medicine and health project. She attends the Ben Davis High School, Indianapolis, Indiana, U.S.A.Naming citation (20040614/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Irenesun is today
Seen from above the solar system on 2026-10-14: Irenesun is 1.97 au from the Sun and 1.60 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 18180 |
| Provisional designation | 2000 QB30 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.10 km (#14,950 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.291 |
| Rotation period | 10.3 hours |
| Absolute magnitude (H) | 14.83 |
| Orbital period | 3.29 years |
| Semi-major axis | 2.21 au |
| Perihelion – aphelion | 1.86 – 2.56 au |
| Eccentricity | 0.160 |
| Inclination | 4.51° |
| Closest distance between its orbit and Earth's (MOID) | 0.844 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Irene
- (34326) Zhaurova
- (46722) Ireneadler
- (51430) Ireneclaire
- (90455) Irenehernandez
- (114735) Irenemagni
- (145174) Irenejoliotcurie
All asteroids named after someone called Irene
Also discovered on 25 August 2000
- (18190) Michaelpizer
- (18191) Rayhe
- (18192) Craigwallace
- (18928) Pontremoli
- (18943) Elaisponton
- (18949) Tumaneng
- (18954) Sarahbounds
- (20768) Langberg
- (20770) Yumoto
- (20771) Yurimoto
- (23192) Caysvesterby
- (27570) Erinschumacher