765 Mattiaca

765 Mattiaca is a minor planet, specifically an asteroid orbiting in the asteroid belt. Photometric observations made in 2011–2012 at the Organ Mesa Observatory in Las Cruces, New Mexico produced an irregular light curve and a period of 3.4640 ± 0.0001 hours with a brightness variation of 0.09 ± 0.01 in magnitude. Mattiacum was the Latin name for the city of Wiesbaden, Germany, birthplace of the discoverer.