(129216) Chloecastle Main-belt Asteroid
Discovered on 10 July 2005 by CSS at Catalina.
Chloe Castle (b. 1990) worked as a Hofstadter Analytical Services test engineer on OSIRIS-REx Asteroid Sample Return Mission OCAMS camera system, her first space mission.Naming citation (MPC batch dated 2016-08-18), IAU / Minor Planet Center, via NASA/JPL
Where Chloecastle is today
Seen from above the solar system on 2026-10-14: Chloecastle is 2.73 au from the Sun and 3.16 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 129216 |
| Provisional designation | 2005 NQ82 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.07 km (#15,040 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.297 |
| Absolute magnitude (H) | 15.05 |
| Orbital period | 5.50 years |
| Semi-major axis | 3.12 au |
| Perihelion – aphelion | 2.33 – 3.90 au |
| Eccentricity | 0.252 |
| Inclination | 15.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.38 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Chloe
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