(42112) Hongkyumoon Main-belt Asteroid

Discovered on 4 January 2001 by LONEOS at Anderson Mesa.

Hong-Kyu Moon (b. 1965) is a planetary scientist at the Korea Astronomy and Space Science Institute (Daejeon, South Korea). He studies survey simulations for near-Earth objects and is P.I. of the DEEP-South observation project for asteroids and comets in the southern sky.Naming citation (WGSBN Bull. 1, #2, 22), IAU / Minor Planet Center, via NASA/JPL

Where Hongkyumoon is today

Seen from above the solar system on 2026-10-14: Hongkyumoon is 2.95 au from the Sun and 3.76 au from Earth. Computed from JPL's orbital elements.

Facts

Number	42112
Provisional designation	2001 AF48
Orbit class	Main-belt Asteroid
Diameter	10.8 km (#4,705 largest of 17,440 named asteroids with a measured size)
Albedo	0.0800
Rotation period	8.14 hours
Absolute magnitude (H)	13.46
Orbital period	4.82 years
Semi-major axis	2.85 au
Perihelion – aphelion	2.41 – 3.29 au
Eccentricity	0.155
Inclination	35.8°
Closest distance between its orbit and Earth's (MOID)	1.42 au

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

Also named after someone called Kyu

(6980) Kyusakamoto

All asteroids named after someone called Kyu

Also discovered on 4 January 2001

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