(129564) Christy Main-belt Asteroid

Discovered on 7 March 1997 by M. W. Buie at Anderson Mesa.

James Walter Christy (b. 1938), for many years on the staff of the U.S. Naval Observatory, is the discoverer of Charon, the largest satellite of (134340) Pluto. Just thirty years ago Jim spotted that which many others failed to notice and unlocked many doors in the study of the Pluto system.Naming citation (20080819/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Christy is today

MercuryVenusEarthEarthMarsMarsChristyChristy

Seen from above the solar system on 2026-10-14: Christy is 2.87 au from the Sun and 2.94 au from Earth. Computed from JPL's orbital elements.

Facts

Number129564
Provisional designation1997 ER40
Orbit classMain-belt Asteroid
Absolute magnitude (H)15.91
Orbital period4.38 years
Semi-major axis2.68 au
Perihelion – aphelion2.46 – 2.89 au
Eccentricity0.0794
Inclination14.3°
Closest distance between its orbit and Earth's (MOID)1.50 au

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

Also named after someone called James

Also discovered on 7 March 1997

More named asteroids discovered by M. W. Buie