(658) Asteria Main-belt Asteroid

Discovered on 23 January 1908 by A. Kopff at Heidelberg.

Where Asteria is today

MercuryVenusEarthEarthMarsMarsAsteriaAsteria

Seen from above the solar system on 2026-10-14: Asteria is 2.82 au from the Sun and 2.38 au from Earth. Computed from JPL's orbital elements.

Facts

Number658
Provisional designationA908 BL
Orbit classMain-belt Asteroid
Diameter21.9 km (#1,983 largest of 17,440 named asteroids with a measured size)
Albedo0.192
Rotation period21.0 hours
Spectral typeS
Absolute magnitude (H)10.47
Orbital period4.82 years
Semi-major axis2.86 au
Perihelion – aphelion2.68 – 3.03 au
Eccentricity0.0615
Inclination1.50°
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 discovered on 23 January 1908

More named asteroids discovered by A. Kopff