(17929) Sully Main-belt Asteroid
Discovered on 15 April 1999 by LINEAR at Socorro.
Brandon Sullivan mentored a finalist in the 2020 Regeneron Science Talent Search, a science competition for high school seniors. He teaches at the Wellington School, Columbus, Ohio.Naming citation (WGSBN Bull. 3, #11, 13), IAU / Minor Planet Center, via NASA/JPL
👶 Sully as a baby name🐶 Sully as a dog name🐱 Sully as a cat name
Where Sully is today
Seen from above the solar system on 2026-10-14: Sully is 2.98 au from the Sun and 3.56 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 17929 |
| Provisional designation | 1999 GQ21 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.43 km (#9,826 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.217 |
| Rotation period | 4.44 hours |
| Absolute magnitude (H) | 13.51 |
| Orbital period | 4.07 years |
| Semi-major axis | 2.55 au |
| Perihelion – aphelion | 2.12 – 2.98 au |
| Eccentricity | 0.169 |
| Inclination | 15.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.17 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Brandon
- (15020) Brandonimber
- (16067) Brandonfan
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- (17954) Hopkins
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- (23855) Brandonshih
- (25783) Brandontyler
- (26504) Brandonli
- (30271) Brandoncui
- (33606) Brandonmuncan
- (115477) Brantanica
All asteroids named after someone called Brandon
Also discovered on 15 April 1999
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- (17059) Elvis
- (17063) Papaloizou
- (17064) Ashnashah
- (17065) Shrilashah
- (17066) Ginagallant
- (17069) Adyantshankar
- (17070) Yanniksingh
- (17071) Spiride
- (17917) Cartan
- (17921) Aldeobaldia
- (17923) Strother