(4146) Rudolfinum Main-belt Asteroid

Discovered on 16 February 1982 by L. Brozek at Klet.

Where Rudolfinum is today

MercuryVenusEarthEarthMarsMarsRudolfinumRudolfinum

Seen from above the solar system on 2026-10-14: Rudolfinum is 2.20 au from the Sun and 3.18 au from Earth. Computed from JPL's orbital elements.

Facts

Number4146
Provisional designation1982 DD2
Orbit classMain-belt Asteroid
Diameter4.76 km (#11,105 largest of 17,440 named asteroids with a measured size)
Albedo0.247
Rotation period14.6 hours
Absolute magnitude (H)13.92
Orbital period3.39 years
Semi-major axis2.26 au
Perihelion – aphelion2.02 – 2.50 au
Eccentricity0.107
Inclination4.71°
Closest distance between its orbit and Earth's (MOID)1.03 au

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

Also discovered on 16 February 1982

More named asteroids discovered by L. Brozek