12999 Toruń

It was discovered on 30 August 1981, by British–American astronomer Edward Bowell at Lowell Observatory's Anderson Mesa Station in Flagstaff, Arizona, and named after the Polish city of Toruń.

[1] The first precovery was taken at Goethe Link Observatory in 1957, extending the asteroid's observation arc by 24 years prior to its discovery.

[2] A rotational lightcurve of Toruń was obtained from photometric observations at the U.S. Palomar Transient Factory in December 2009.

The provisional lightcurve gave a rotation period of 3.5521±0.0026 hours with a brightness amplitude of 0.09 in magnitude (U=1).

It is the birthplace of Nicolaus Copernicus, significant to Polish and European history, a UNESCO World Heritage listed Old Town, and the main site of the Nicolaus Copernicus University, where its observatory at Piwnice, the largest in Poland, is located.