(342) Endymion Main-belt Asteroid

Discovered on 17 October 1892 by M. F. Wolf at Heidelberg.

Where Endymion is today

MercuryVenusEarthEarthMarsMarsEndymionEndymion

Seen from above the solar system on 2026-10-14: Endymion is 2.86 au from the Sun and 3.57 au from Earth. Computed from JPL's orbital elements.

Facts

Number342
Provisional designationA892 UA
Orbit classMain-belt Asteroid
Diameter64.3 km (#534 largest of 17,440 named asteroids with a measured size)
Albedo0.0350
Rotation period6.32 hours
Spectral typeC
Absolute magnitude (H)10.23
Orbital period4.12 years
Semi-major axis2.57 au
Perihelion – aphelion2.23 – 2.90 au
Eccentricity0.130
Inclination7.35°
Closest distance between its orbit and Earth's (MOID)1.26 au

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

More named asteroids discovered by M. F. Wolf