(10785) Dejaiffe Main-belt Asteroid

Discovered on 4 September 1991 by E. W. Elst at La Silla.

René Dejaiffe (b. 1940), of the Royal Belgian Observatory, has presided over national and international societies and organized more than 1400 conferences on astronomy and space science. Since 1997 he has been general secretary of the Société Royale Belge d´Astronomie, de Météorologie et de Physique du Globe.Naming citation (19991123/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Dejaiffe is today

MercuryVenusEarthEarthMarsMarsDejaiffeDejaiffe

Seen from above the solar system on 2026-10-14: Dejaiffe is 2.66 au from the Sun and 2.93 au from Earth. Computed from JPL's orbital elements.

Facts

Number10785
Provisional designation1991 RD12
Orbit classMain-belt Asteroid
Diameter4.41 km (#11,807 largest of 17,440 named asteroids with a measured size)
Albedo0.361
Absolute magnitude (H)13.85
Orbital period4.77 years
Semi-major axis2.83 au
Perihelion – aphelion2.50 – 3.17 au
Eccentricity0.117
Inclination3.35°
Closest distance between its orbit and Earth's (MOID)1.52 au

Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.

Also named after someone called Rene

Also discovered on 4 September 1991

More named asteroids discovered by E. W. Elst