(18564) Caseyo Main-belt Asteroid
Discovered on 2 April 1997 by LINEAR at Socorro.
Casey O'Connell mentored a finalist in the 2012 Intel Science Talent Search, a science competition for high-school seniors. He teaches at the Henry M. Gunn High School, Palo Alto, California.Naming citation (20120506/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Caseyo is today
Seen from above the solar system on 2026-10-14: Caseyo is 3.45 au from the Sun and 2.62 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 18564 |
| Provisional designation | 1997 GO6 |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.90 km (#5,835 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0740 |
| Absolute magnitude (H) | 13.8 |
| Orbital period | 5.46 years |
| Semi-major axis | 3.10 au |
| Perihelion – aphelion | 2.73 – 3.48 au |
| Eccentricity | 0.121 |
| Inclination | 0.0950° |
| Closest distance between its orbit and Earth's (MOID) | 1.73 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Casey
All asteroids named after someone called Casey
Also discovered on 2 April 1997
- (9442) Beiligong
- (15891) Alissazhang
- (20210) Athanasopoulos
- (20211) Joycegates
- (24926) Jinpan
- (26940) Quintero
- (27930) Nakamatsu
- (27931) Zeitlin-Trinkle
- (27932) Leonyao
- (37764) Omirika
- (100553) Dariofo