(3123) Dunham Main-belt Asteroid

Discovered on 30 August 1981 by E. Bowell at Anderson Mesa.

Where Dunham is today

MercuryVenusEarthEarthMarsMarsDunhamDunham

Seen from above the solar system on 2026-10-14: Dunham is 2.65 au from the Sun and 3.63 au from Earth. Computed from JPL's orbital elements.

Facts

Number3123
Provisional designation1981 QF2
Orbit classMain-belt Asteroid
Diameter12.1 km (#4,054 largest of 17,440 named asteroids with a measured size)
Albedo0.0400
Rotation period173 hours
Spectral typeF
Absolute magnitude (H)13.57
Orbital period3.86 years
Semi-major axis2.46 au
Perihelion – aphelion2.13 – 2.80 au
Eccentricity0.136
Inclination2.00°
Closest distance between its orbit and Earth's (MOID)1.12 au

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

Also discovered on 30 August 1981

More named asteroids discovered by E. Bowell