(11911) Angel Main-belt Asteroid

Discovered on 4 June 1992 by Shoemaker, C. S., Levy, D. H. at Palomar.

Founder and director of Steward Observatory's mirror lab at the University of Arizona, Tucson, Roger Angel (b. 1941) has spearheaded the development of telescope mirrors as large as eight meters in diameter by a process called spin-casting. His work and ideas have resulted in an enormous increase in telescope light-gathering power.Naming citation (20001111/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Angel is today

MercuryVenusEarthEarthMarsMarsAngelAngel

Seen from above the solar system on 2026-10-14: Angel is 3.31 au from the Sun and 3.87 au from Earth. Computed from JPL's orbital elements.

Facts

Number11911
Provisional designation1992 LF
Orbit classMain-belt Asteroid
Diameter27.2 km (#1,530 largest of 17,440 named asteroids with a measured size)
Albedo0.0540
Absolute magnitude (H)11.93
Orbital period5.72 years
Semi-major axis3.20 au
Perihelion – aphelion2.70 – 3.70 au
Eccentricity0.155
Inclination20.1°
Closest distance between its orbit and Earth's (MOID)1.73 au

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

Also named after someone called Steward

Also discovered on 4 June 1992

More named asteroids discovered by Shoemaker, C. S., Levy, D. H.