(20713) Sheward Main-belt Asteroid
Discovered on 6 December 1999 by LINEAR at Socorro.
Daniel Sheward (b. 1995) is a British planetary scientist whose work focuses on the detection of fresh impact craters on the Moon. His use of the Moon as a natural space laboratory enables the linking of meteoroids to their resulting craters, advancing our understanding of impact-scaling laws and contributing to fundamental impact physics and space safety.Naming citation (WGSBN Bull. 6, #11, 33), IAU / Minor Planet Center, via NASA/JPL
Where Sheward is today
Seen from above the solar system on 2026-10-14: Sheward is 3.42 au from the Sun and 2.83 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20713 |
| Provisional designation | 1999 XA32 |
| Orbit class | Main-belt Asteroid |
| Diameter | 20.7 km (#2,120 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0860 |
| Rotation period | 3.50 hours |
| Absolute magnitude (H) | 12.02 |
| Orbital period | 5.56 years |
| Semi-major axis | 3.14 au |
| Perihelion – aphelion | 2.80 – 3.48 au |
| Eccentricity | 0.109 |
| Inclination | 12.7° |
| Closest distance between its orbit and Earth's (MOID) | 1.82 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Daniel
- (6141) Durda
- (7162) Sidwell
- (7163) Barenboim
- (8109) Danielwilliam
- (8887) Scheeres
- (10081) Dantaylor
- (10482) Dangrieser
- (11203) Danielbetten
- (11230) Deschaffer
- (11596) Francetic
- (12503) Danielpeterson
- (13267) Bolechowski
All asteroids named after someone called Daniel
Also discovered on 6 December 1999
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- (13841) Blankenship
- (13843) Cowenbrown
- (14224) Gaede
- (14678) Pinney
- (16113) Ahmed
- (16114) Alyono
- (16116) Balakrishnan
- (16117) Herbst
- (16142) Leung
- (21990) Garretyazzie
- (21991) Zane