(11808) Platz Main-belt Asteroid

Discovered on 1 March 1981 by S. J. Bus at Siding Spring.

Thomas Platz (b. 1975) is a researcher at the Max Planck Institute and member of the Dawn mission framing camera team studying surface ice deposits on Ceres.Naming citation (MPC batch dated 2017-03-12), IAU / Minor Planet Center, via NASA/JPL

Where Platz is today

MercuryVenusEarthEarthMarsMarsPlatzPlatz

Seen from above the solar system on 2026-10-14: Platz is 2.87 au from the Sun and 3.82 au from Earth. Computed from JPL's orbital elements.

Facts

Number11808
Provisional designation1981 EM17
Orbit classMain-belt Asteroid
Diameter4.63 km (#11,371 largest of 17,440 named asteroids with a measured size)
Albedo0.202
Absolute magnitude (H)13.93
Orbital period4.08 years
Semi-major axis2.55 au
Perihelion – aphelion1.94 – 3.16 au
Eccentricity0.239
Inclination7.40°
Closest distance between its orbit and Earth's (MOID)0.940 au

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

Also named after someone called Thomas

Also discovered on 1 March 1981

More named asteroids discovered by S. J. Bus