1537 Transylvania lightcurve has been obtained, and "Transylvania"s period is still uncertain. According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, "Transylvania" measures between 13.77 and 21.49 kilometers in diameter and its surface has an albedo between 0.05 and 0.1619. The "Collaborative Asteroid Lightcurve Link" derives an albedo of 0.1047 and a diameter of 13.60 kilometers based on an absolute magnitude of 12.4. This minor planet was named after the historical region of Transylvania, located in what is now Romania. Formerly, it was part of
History of Transylvania 895. This is supported by an eleventh-century Russian tradition that the Hungarians moved to the Carpathian Basin by way of Kiev. However, according to Florin Curta no evidence exists of Magyars crossing Eastern Carpathian Mountains into Transylvania. According to supporters of the Daco-Roman continuity theory, Transylvania was populated by Romanians at the time of the Hungarian conquest. Opponents of this theory assert that Transylvania was sparsely inhabited by peoples of Slavic origin and Turkic people. The year of the conquest of Transylvania is unknown; the earliest Magyar artifacts found in the region date to the first half of the 10th