(9223) Leifandersson Main-belt Asteroid

Discovered on 18 December 1995 by Spacewatch at Kitt Peak.

Leif Erland Andersson (1943-1979) observed that most satellites of the outer planets rotate synchronously about their parent planets, helped determine Pluto's pole position and albedo map, and determined that Pluto and its satellite Charon would display mutual transits and eclipses. He also made a catalogue of lunar craters.Naming citation (20000124/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Leifandersson is today

Seen from above the solar system on 2026-10-14: Leifandersson is 2.35 au from the Sun and 1.40 au from Earth. Computed from JPL's orbital elements.

Facts

Number	9223
Provisional designation	1995 YY7
Orbit class	Main-belt Asteroid
Diameter	4.50 km (#11,636 largest of 17,440 named asteroids with a measured size)
Albedo	0.381
Rotation period	3.76 hours
Absolute magnitude (H)	13.6
Orbital period	3.49 years
Semi-major axis	2.30 au
Perihelion – aphelion	2.14 – 2.46 au
Eccentricity	0.0711
Inclination	3.42°
Closest distance between its orbit and Earth's (MOID)	1.12 au

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

Also named after someone called Leif

All asteroids named after someone called Leif

Also discovered on 18 December 1995

More named asteroids discovered by Spacewatch

All 377

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