(200) Dynamene Main-belt Asteroid

Discovered on 27 July 1879 by C. H. F. Peters at Clinton.

Where Dynamene is today

MercuryVenusEarthEarthMarsMarsDynameneDynamene

Seen from above the solar system on 2026-10-14: Dynamene is 2.84 au from the Sun and 3.70 au from Earth. Computed from JPL's orbital elements.

Facts

Number200
Provisional designationA879 OA
Orbit classMain-belt Asteroid
Diameter128 km (#131 largest of 17,440 named asteroids with a measured size)
Albedo0.0530
Rotation period37.4 hours
Spectral typeC
Absolute magnitude (H)8.45
Orbital period4.53 years
Semi-major axis2.74 au
Perihelion – aphelion2.37 – 3.11 au
Eccentricity0.134
Inclination6.90°
Closest distance between its orbit and Earth's (MOID)1.39 au

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

More named asteroids discovered by C. H. F. Peters