(3569) Kumon Main-belt Asteroid

Discovered on 20 February 1938 by K. Reinmuth at Heidelberg.

Where Kumon is today

MercuryVenusEarthEarthMarsMarsKumonKumon

Seen from above the solar system on 2026-10-14: Kumon is 2.81 au from the Sun and 3.49 au from Earth. Computed from JPL's orbital elements.

Facts

Number3569
Provisional designation1938 DN1
Orbit classMain-belt Asteroid
Diameter7.70 km (#6,873 largest of 17,440 named asteroids with a measured size)
Albedo0.248
Rotation period57.4 hours
Absolute magnitude (H)12.66
Orbital period4.17 years
Semi-major axis2.59 au
Perihelion – aphelion2.27 – 2.91 au
Eccentricity0.123
Inclination14.0°
Closest distance between its orbit and Earth's (MOID)1.31 au

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

Also discovered on 20 February 1938

More named asteroids discovered by K. Reinmuth