(555) Norma Main-belt Asteroid

Discovered on 14 January 1905 by M. F. Wolf at Heidelberg.

Where Norma is today

MercuryVenusEarthEarthMarsMarsNormaNorma

Seen from above the solar system on 2026-10-14: Norma is 3.66 au from the Sun and 3.24 au from Earth. Computed from JPL's orbital elements.

Facts

Number555
Provisional designationA905 AF
Orbit classMain-belt Asteroid
Diameter31.0 km (#1,316 largest of 17,440 named asteroids with a measured size)
Albedo0.119
Rotation period19.5 hours
Spectral typeB
Absolute magnitude (H)10.93
Orbital period5.67 years
Semi-major axis3.18 au
Perihelion – aphelion2.69 – 3.67 au
Eccentricity0.156
Inclination2.67°
Closest distance between its orbit and Earth's (MOID)1.70 au

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

More named asteroids discovered by M. F. Wolf