(11667) Testa Main-belt Asteroid

Discovered on 19 October 1997 by Tesi, L., Boattini, A. at San Marcello.

Augusto Testa (b. 1950), Italian amateur astronomer, observes minor planets at the Sormano Astronomical Observatory. Over the past few years he has developed a lot of software dedicated to the observation of minor planets, and these are widely used by the Italian community of astrometric observers.Naming citation (20000124/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Testa is today

MercuryVenusEarthEarthMarsMarsTestaTesta

Seen from above the solar system on 2026-10-14: Testa is 2.65 au from the Sun and 2.57 au from Earth. Computed from JPL's orbital elements.

Facts

Number11667
Provisional designation1997 UB1
Orbit classMain-belt Asteroid
Diameter2.50 km (#16,256 largest of 17,440 named asteroids with a measured size)
Albedo0.407
Absolute magnitude (H)14.97
Orbital period3.53 years
Semi-major axis2.32 au
Perihelion – aphelion1.96 – 2.68 au
Eccentricity0.156
Inclination4.75°
Closest distance between its orbit and Earth's (MOID)0.947 au

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

Also named after someone called Augusto

Also discovered on 19 October 1997

More named asteroids discovered by Tesi, L., Boattini, A.