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
Electrica Transylvania North Electrica Transylvania North Electrica North Transylvania is a Romanian company that distributes and supplies electric power for 1,089,192 customers in Cluj, Bihor, Maramureş, Satu Mare, Salaj and Bistriţa-Năsăud. Electrica North Transylvania with its headquarters in Cluj-Napoca, unfolds its activity in an area of 34,160 km². The Electricity Supply and Distribution Branch North Transylvania sold, in 2002, over 3,845,622 MWh, a sales level that ranges it among the first at the national level from this point of view. Electrica North Transylvania administrates 39,996 km of electric lines – aerial and subterraneous, 90 transformation stations and 7,535 supply units and transformation stations.