(21336) Andyblanchard Main-belt Asteroid
Discovered on 31 January 1997 by Spacewatch at Kitt Peak.
Andy Blanchard (b. 1956) founded AstroCATS, an annual telescope exhibit, in 2013, and won a Service Award from the Royal Astronomical Society of Canada in 2016. Name suggested by R. and P. Jedicke.Naming citation (WGSBN Bull. 3, #13, 12), IAU / Minor Planet Center, via NASA/JPL
Where Andyblanchard is today
Seen from above the solar system on 2026-10-14: Andyblanchard is 2.68 au from the Sun and 2.99 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21336 |
| Provisional designation | 1997 BU8 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.73 km (#15,788 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.284 |
| Absolute magnitude (H) | 14.91 |
| Orbital period | 4.28 years |
| Semi-major axis | 2.63 au |
| Perihelion – aphelion | 2.57 – 2.70 au |
| Eccentricity | 0.0262 |
| Inclination | 1.71° |
| Closest distance between its orbit and Earth's (MOID) | 1.56 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Andy
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- (20095) Andylopezoquendo
- (25234) Odell
- (29880) Andytran
- (55381) Lautakwah
- (142758) Connolly
All asteroids named after someone called Andy
Also discovered on 31 January 1997
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- (9232) Miretti
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- (12033) Anselmo
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- (13192) Quine
- (13652) Elowitz
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