(122555) Aunon-Chancellor Main-belt Asteroid
Discovered on 28 August 2000 by M. W. Buie at Cerro Tololo.
Serena M. Auñón-Chancellor (b. 1976) is an engineer, physician, and astronaut. She has collected meteorites in Antarctica, served as an aquanaut on an undersea research station, and was a Flight Engineer on the International Space Station for 6 months in 2018.Naming citation (MPC batch dated 2021-01-27), IAU / Minor Planet Center, via NASA/JPL
Where Aunon-Chancellor is today
Seen from above the solar system on 2026-10-14: Aunon-Chancellor is 2.71 au from the Sun and 1.93 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 122555 |
| Provisional designation | 2000 QG249 |
| Orbit class | Main-belt Asteroid |
| Diameter | 1.43 km (#17,366 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.288 |
| Absolute magnitude (H) | 16.31 |
| Orbital period | 3.62 years |
| Semi-major axis | 2.36 au |
| Perihelion – aphelion | 1.96 – 2.76 au |
| Eccentricity | 0.169 |
| Inclination | 6.51° |
| Closest distance between its orbit and Earth's (MOID) | 0.955 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Serena
All asteroids named after someone called Serena
Also discovered on 28 August 2000
- (18932) Robinhood
- (18944) Sawilliams
- (18974) Brungardt
- (19788) Hunker
- (20769) Yucelkilic
- (24451) Molion
- (34208) Danielzhang
- (34235) Ellafeiner
- (34236) Firester
- (34237) Sarahgao
- (34239) Louisgolowich
- (34240) Charleyhutch