Chephren was a pharaoh of the old Egyptian kingdom. He reigned about 2500 B.C. and built the second largest pyramid near Giza {see planet (5249)}. He is also known because of his monumental sphinx {see also planet (896)}. (M 18142) _ _.
Discovered on 26-9-1960 in Palomar by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T.