(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

MercuryVenusEarthEarthMarsMarsSansSans

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

Number10691
Provisional designation1981 EJ19
Orbit classOuter Main-belt Asteroid
Diameter9.29 km (#5,547 largest of 17,440 named asteroids with a measured size)
Albedo0.0740
Absolute magnitude (H)13.96
Orbital period5.73 years
Semi-major axis3.20 au
Perihelion – aphelion2.82 – 3.59 au
Eccentricity0.120
Inclination0.673°
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

Also discovered on 2 March 1981

More named asteroids discovered by S. J. Bus