(10657) Wanach Main-belt Asteroid

Discovered on 25 March 1971 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.

Bernhard Karl Wanach (1867-1928) carried out pioneering work on polar motion with C. T. Albrecht, whom he succeeded as head of the International Latitude Service.Naming citation (20021120/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Wanach is today

MercuryVenusEarthEarthMarsMarsWanachWanach

Seen from above the solar system on 2026-10-14: Wanach is 2.68 au from the Sun and 3.28 au from Earth. Computed from JPL's orbital elements.

Facts

Number10657
Provisional designation2251 T-1
Orbit classMain-belt Asteroid
Diameter3.65 km (#13,584 largest of 17,440 named asteroids with a measured size)
Albedo0.211
Absolute magnitude (H)14.74
Orbital period4.68 years
Semi-major axis2.80 au
Perihelion – aphelion2.67 – 2.92 au
Eccentricity0.0442
Inclination3.60°
Closest distance between its orbit and Earth's (MOID)1.69 au

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

Also named after someone called Bernhard

Also discovered on 25 March 1971

More named asteroids discovered by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T.