(20094) Andrewcoates Main-belt Asteroid
Discovered on 12 August 1994 by E. W. Elst at La Silla.
Andrew Coates (b. 1957) is a British professor of planetary physics at University College London’s Mullard Space Science Laboratory. His research has included groundbreaking studies of ion pickup at comets using Giotto mission data, plasma interactions with other unmagnetized bodies, planetary magnetospheres, and planetary surface studies.Naming citation (WGSBN Bull. 6, #11, 9), IAU / Minor Planet Center, via NASA/JPL
Where Andrewcoates is today
Seen from above the solar system on 2026-10-14: Andrewcoates is 3.18 au from the Sun and 4.08 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20094 |
| Provisional designation | 1994 PS26 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.16 km (#8,702 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0810 |
| Absolute magnitude (H) | 14.51 |
| Orbital period | 4.83 years |
| Semi-major axis | 2.86 au |
| Perihelion – aphelion | 2.47 – 3.25 au |
| Eccentricity | 0.137 |
| Inclination | 11.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.51 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Andrew
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- (5441) Andymurray
- (6814) Steffl
- (6825) Irvine
- (6947) Andrewdavis
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- (8257) Andycheng
- (8867) Tubbiolo
- (9999) Wiles
- (10230) Andrewnorton
- (11450) Shearer
- (12506) Pariser
All asteroids named after someone called Andrew
Also discovered on 12 August 1994
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- (8550) Hesiodos
- (9640) Lippens
- (9641) Demaziere
- (9778) Isabelallende
- (9879) Mammuthus
- (9880) Stegosaurus
- (10151) Rubens
- (10361) Bunsen
- (10841) Ericforbes
- (11095) Havana
- (11583) Breuer