(21588) Gianelli Main-belt Asteroid
Discovered on 26 September 1998 by LINEAR at Socorro.
Gabrielle Alyce Gianelli (b. 1988) was awarded first place and Best in Category in the 2005 Intel International Science and Engineering Fair for her space science project. She also received the Intel Young Scientist Award. She attends the Lake Highland Preparatory School, Orlando, Florida, U.S.A.Naming citation (20050822/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Gianelli is today
Seen from above the solar system on 2026-10-14: Gianelli is 3.55 au from the Sun and 2.92 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21588 |
| Provisional designation | 1998 SK157 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 14.2 |
| Orbital period | 5.43 years |
| Semi-major axis | 3.09 au |
| Perihelion – aphelion | 2.60 – 3.58 au |
| Eccentricity | 0.159 |
| Inclination | 2.57° |
| Closest distance between its orbit and Earth's (MOID) | 1.58 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Gabrielle
All asteroids named after someone called Gabrielle
Also discovered on 26 September 1998
- (10237) Adzic
- (10238) Ananyakarthik
- (11380) Amolsingh
- (11382) Juliasitu
- (12915) Rinoliver
- (13336) Jillpernell
- (13337) Sampath
- (13339) Williamsmith
- (13341) Kellysweeney
- (13343) Annietaylor
- (13344) Upenieks
- (13346) Danielmiller