(185) Eunike Main-belt Asteroid

Discovered on 1 March 1878 by C. H. F. Peters at Clinton.

Where Eunike is today

MercuryVenusEarthEarthMarsMarsEunikeEunike

Seen from above the solar system on 2026-10-14: Eunike is 2.59 au from the Sun and 2.47 au from Earth. Computed from JPL's orbital elements.

Facts

Number185
Provisional designationA878 EA
Orbit classMain-belt Asteroid
Diameter160 km (#67 largest of 17,440 named asteroids with a measured size)
Albedo0.0620
Rotation period21.8 hours
Spectral typeC
Absolute magnitude (H)7.62
Orbital period4.53 years
Semi-major axis2.74 au
Perihelion – aphelion2.39 – 3.09 au
Eccentricity0.127
Inclination23.3°
Closest distance between its orbit and Earth's (MOID)1.42 au

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

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