(10951) Spessart Main-belt Asteroid

Discovered on 24 September 1960 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.

Geologically, the Spessart is part of the mountains east of the Rhine, which extend from Basel in the south to Frankfurt in the north. It is a small chain of mountains surrounded by the river Main on three sides.Naming citation (20030501/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Spessart is today

MercuryVenusEarthEarthMarsMarsSpessartSpessart

Seen from above the solar system on 2026-10-14: Spessart is 3.13 au from the Sun and 3.16 au from Earth. Computed from JPL's orbital elements.

Facts

Number10951
Provisional designation4050 P-L
Orbit classMain-belt Asteroid
Diameter6.28 km (#8,533 largest of 17,440 named asteroids with a measured size)
Albedo0.178
Rotation period4.54 hours
Absolute magnitude (H)13.86
Orbital period5.16 years
Semi-major axis2.99 au
Perihelion – aphelion2.80 – 3.17 au
Eccentricity0.0618
Inclination9.62°
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 discovered on 24 September 1960

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