(10691) Sans Outer Main-belt Asteroid
Discovered on 2 March 1981 by S. J. Bus at Siding Spring.
Juan Diego Sans (1922-2005) was a Uruguayan professor and public communicator of astronomy at the Universidad de la Republica. He was co-founder of the Asociación de Aficionados a la Astronomía and president of the Sociedad Uruguaya de Astronomía.Naming citation (MPC batch dated 2017-03-12), IAU / Minor Planet Center, via NASA/JPL
Where Sans is today
Seen from above the solar system on 2026-10-14: Sans is 2.82 au from the Sun and 3.66 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10691 |
| Provisional designation | 1981 EJ19 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 9.29 km (#5,547 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0740 |
| Absolute magnitude (H) | 13.96 |
| Orbital period | 5.73 years |
| Semi-major axis | 3.20 au |
| Perihelion – aphelion | 2.82 – 3.59 au |
| Eccentricity | 0.120 |
| Inclination | 0.673° |
| Closest distance between its orbit and Earth's (MOID) | 1.83 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Juan
- (2124) Nissen
- (4270) Juanvictoria
- (5081) Sanguin
- (6505) Muzzio
- (6810) Juanclaria
- (8780) Forte
- (9284) Juansanchez
- (10700) Juanangelviera
- (11193) Merida
- (11363) Vives
- (20423) Juanluisrizos
- (21045) Juangabriel
All asteroids named after someone called Juan
Also discovered on 2 March 1981
- (2884) Reddish
- (2919) Dali
- (2980) Cameron
- (2981) Chagall
- (2990) Trimberger
- (3000) Leonardo
- (3121) Tamines
- (3122) Florence
- (3207) Spinrad
- (3252) Johnny
- (3304) Pearce
- (3524) Schulz
More named asteroids discovered by S. J. Bus
- (2285) Ron Helin
- (2780) Monnig
- (2791) Paradise
- (2884) Reddish
- (2919) Dali
- (2980) Cameron
- (2981) Chagall
- (2990) Trimberger
- (3000) Leonardo
- (3029) Sanders
- (3030) Vehrenberg
- (3042) Zelinsky
← (10690) Massera · (10692) Opeil →