(16641) Esteban Main-belt Asteroid

Discovered on 16 August 1993 by Shoemaker, C. S., Shoemaker, E. M. at Palomar.

Manuel (b. 1940) and Gloria (b. 1940) Esteban have been an admired and popular couple at the California State University, Chico, where he served very ably as president from 1993 to 2003. Both Barcelona-born, Manuel is also known for his ability as an artistic glassblower and Gloria for her interest in art and literature.Naming citation (20030806/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Esteban is today

MercuryVenusEarthEarthMarsMarsEstebanEsteban

Seen from above the solar system on 2026-10-14: Esteban is 2.65 au from the Sun and 2.99 au from Earth. Computed from JPL's orbital elements.

Facts

Number16641
Provisional designation1993 QH10
Orbit classMain-belt Asteroid
Diameter5.73 km (#9,336 largest of 17,440 named asteroids with a measured size)
Albedo0.313
Rotation period79.6 hours
Absolute magnitude (H)13.68
Orbital period3.53 years
Semi-major axis2.32 au
Perihelion – aphelion1.99 – 2.65 au
Eccentricity0.143
Inclination20.6°
Closest distance between its orbit and Earth's (MOID)0.981 au

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

Also discovered on 16 August 1993

More named asteroids discovered by Shoemaker, C. S., Shoemaker, E. M.