(70449) Gruebel Main-belt Asteroid
Discovered on 15 October 1999 by Bruton, W. D., Johnson, M. L. at Nacogdoches.
Robert W. Gruebel (1924-2016) was a Professor of Physics at Stephen F. Austin State University, and a mentor, colleague and friend of the discoverer.Naming citation (MPC batch dated 2017-03-12), IAU / Minor Planet Center, via NASA/JPL
Where Gruebel is today
Seen from above the solar system on 2026-10-14: Gruebel is 2.26 au from the Sun and 3.26 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 70449 |
| Provisional designation | 1999 TK17 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.45 |
| Orbital period | 3.62 years |
| Semi-major axis | 2.36 au |
| Perihelion – aphelion | 2.01 – 2.71 au |
| Eccentricity | 0.148 |
| Inclination | 1.63° |
| Closest distance between its orbit and Earth's (MOID) | 1.03 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Robert
- (1955) McMath
- (3514) Hooke
- (3875) Staehle
- (4564) Clayton
- (4809) Robertball
- (5109) Robertmiller
- (5308) Hutchison
- (5477) Holmes
- (5585) Parks
- (5636) Jacobson
- (5739) Robertburns
- (5817) Robertfrazer
All asteroids named after someone called Robert
Also discovered on 15 October 1999
- (17178) Caitlinrita
- (21822) Degiorgi
- (22928) Templehe
- (22944) Sarahmarzen
- (22945) Schikowski
- (22947) Carolsuh
- (25381) Jerrynelson
- (38461) Jiritrnka
- (66671) Sfasu
- (137315) Wangshouwu
- (192686) Aljuroma
More named asteroids discovered by Bruton, W. D., Johnson, M. L.
← (70446) Pugh · (70679) Urzidil →