(20378) Graykowski Main-belt Asteroid
Discovered on 22 May 1998 by LINEAR at Socorro.
Ariel Graykowski (b. 1993) is an American planetary astronomer and post-doctoral fellow at the SETI institute. She is studying small bodies and leading a citizen-scientist project on monitoring cometary activity with small telescopes.Naming citation (WGSBN Bull. 6, #11, 15), IAU / Minor Planet Center, via NASA/JPL
Where Graykowski is today
Seen from above the solar system on 2026-10-14: Graykowski is 2.83 au from the Sun and 3.77 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20378 |
| Provisional designation | 1998 KZ46 |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.04 km (#6,546 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.227 |
| Rotation period | 5.14 hours |
| Absolute magnitude (H) | 13.02 |
| Orbital period | 4.20 years |
| Semi-major axis | 2.60 au |
| Perihelion – aphelion | 2.30 – 2.91 au |
| Eccentricity | 0.117 |
| Inclination | 14.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.33 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Ariel
All asteroids named after someone called Ariel
Also discovered on 22 May 1998
- (9466) Shishir
- (11187) Richoliver
- (11730) Yanhua
- (11735) Isabellecohen
- (12104) Chesley
- (12106) Menghuan
- (12107) Reneebarcia
- (12108) Jamesaustin
- (12529) Reighard
- (12530) Richardson
- (12860) Turney
- (12861) Wacker