6536 P-L. Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld at Palomar.
Named for the Greek scholar Eratosthenes, who lived in Alexandria around 250 B.C. and was the first person to determine the size of the Earth correctly. (M 16591)
Eratosthenes is also honored by a lunar crater.