(74) Galatea Main-belt Asteroid

Discovered on 29 August 1862 by E. W. Tempel at Marseilles.

Where Galatea is today

MercuryVenusEarthEarthMarsMarsGalateaGalatea

Seen from above the solar system on 2026-10-14: Galatea is 3.30 au from the Sun and 4.13 au from Earth. Computed from JPL's orbital elements.

Facts

Number74
Provisional designationA862 QA
Orbit classMain-belt Asteroid
Diameter119 km (#163 largest of 17,440 named asteroids with a measured size)
Albedo0.0431
Rotation period17.3 hours
Spectral typeC
Absolute magnitude (H)8.9
Orbital period4.64 years
Semi-major axis2.78 au
Perihelion – aphelion2.12 – 3.44 au
Eccentricity0.238
Inclination4.07°
Closest distance between its orbit and Earth's (MOID)1.12 au

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

More named asteroids discovered by E. W. Tempel