(133552) Itting-Enke Main-belt Asteroid

Discovered on 16 October 2003 by Turtle Star at Mulheim-Ruhr.

Sonja Itting-Enke (b. 1930) founded the Cuno Hoffmeister Memorial Observatory near Windhoek. Since 1985 she has dedicated her life to the astronomical education of the whole population of the Republic of Namibia.Naming citation (20061109/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Itting-Enke is today

MercuryVenusEarthEarthMarsMarsItting-EnkeItting-Enke

Seen from above the solar system on 2026-10-14: Itting-Enke is 3.23 au from the Sun and 2.40 au from Earth. Computed from JPL's orbital elements.

Facts

Number133552
Provisional designation2003 UJ4
Orbit classMain-belt Asteroid
Diameter6.00 km (#8,936 largest of 17,440 named asteroids with a measured size)
Albedo0.0850
Absolute magnitude (H)14.54
Orbital period5.68 years
Semi-major axis3.18 au
Perihelion – aphelion2.81 – 3.55 au
Eccentricity0.117
Inclination17.2°
Closest distance between its orbit and Earth's (MOID)1.85 au

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

Also named after someone called Sonja

Also discovered on 16 October 2003