Discovered by P. SicoliV. Giuliani Discovered 5 February 1995 | Discovery date 5 February 1995 Orbits Sun Asteroid group Asteroid belt | |
Alternative names 1995 CC1 · 1986 XM21989 OW · 1993 OQ Similar Sun, 85 Io, 812 Adele, 258 Tyche, 1996 Adams | ||
6882 Sormano, provisional designation 1995 CC1, is an stony Eunomia asteroid from the middle region of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 5 February 1995, by Italian amateur astronomers Piero Sicoli and Valter Giuliani at Sormano Astronomical Observatory in northern Italy.
The asteroid is a member of the Eunomia family, a large group of S-type asteroids and the most prominent family in the intermediate main-belt. It orbits the Sun at a distance of 2.3–2.8 AU once every 4 years and 1 month (1,490 days). Its orbit has an eccentricity of 0.10 and an inclination of 14° with respect to the ecliptic. The asteroid's observation arc begins 6 years prior to its discovery, as it had previously been identified as "1989 OW" at Palomar Observatory in 1989.
In September 2010, a rotational light-curve was obtained from photometric observations made at the Palomar Transient Factory in California. It gave a rotation period of 7000369010000000000♠3.6901±0.0006 hours with a high brightness variation of 0.71 magnitude, indicative of a non-spheroidal shape (U=2). A similar period of 3.998 hours was derived from remodeled data of the Lowell photometric database (n.a.).
According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures 7.6 to 8.0 kilometers in diameter and its surface has an albedo between 0.269 and 0.300. The Collaborative Asteroid Lightcurve Link assumes an albedo 0.21 – derived from 15 Eunomia, the family's largest member and namesake – and calculates a diameter of 6.69 kilometers, based on an absolute magnitude of 13.19.
The minor planet was named in honor of the Italian mountain-village of Sormano and its discovering nearby observatory. It is funded, built and operated by the "Gruppo Astrofili Brianza", a group of Italian amateur astronomers who have discovered numerous minor planets. Naming citation was published on 3 May 1996 (M.P.C. 27130).