Thüringer Landessternwarte Tautenburg
100268 Rosenthal, provisional designation "", is a background asteroid from the inner region of the asteroid belt, approximately in diameter. It was discovered on 5 October 1994, by German astronomer Freimut Börngen at the Karl Schwarzschild Observatory in Tautenburg, eastern Germany. The asteroid was later named for German radio and TV host Hans Rosenthal.