(12574) LONEOS Main-belt Asteroid

Discovered on 4 September 1999 by C. W. Juels at Fountain Hills.

LONEOS, the Lowell Observatory Near-Earth-Object Search, looks for and has discovered many minor planets and comets that approach Earth. The LONEOS 0.59-m ƒ/1.91 Schmidt telescope, which began full-time operations in March 1998, can survey the entire sky accessible from Anderson Mesa, Arizona, every month.Naming citation (20010109/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where LONEOS is today

MercuryVenusEarthEarthMarsMarsLONEOSLONEOS

Seen from above the solar system on 2026-10-14: LONEOS is 2.56 au from the Sun and 1.64 au from Earth. Computed from JPL's orbital elements.

Facts

Number12574
Provisional designation1999 RT
Orbit classMain-belt Asteroid
Diameter7.40 km (#7,207 largest of 17,440 named asteroids with a measured size)
Albedo0.225
Absolute magnitude (H)13.15
Orbital period4.41 years
Semi-major axis2.69 au
Perihelion – aphelion2.46 – 2.92 au
Eccentricity0.0858
Inclination11.0°
Closest distance between its orbit and Earth's (MOID)1.48 au

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

Also named after someone called Lowell

Also discovered on 4 September 1999

More named asteroids discovered by C. W. Juels