Named in honor of the mountain village of Sormano and its nearby observatory where this object was discovered. The facility, built in 1986 by amateur astronomers of the Gruppo Astrofili Brianza, is located in the pre-Alps of Lombardy, between the southern arms of Lake Como. Since its foundation, the observatory has been involved in astrometric work on minor planets and comets, in particular the follow-up of near-earth objects. (M 27130) _ _.