 Main-belt asteroid 6312 Robheinlein (1990 RH4), discovered on September 14, 1990 by H. E. Holt, at Palomar was named after him.There is no lunar feature named explicitly for Heinlein, but in 1994 the International Astronomical Union named Heinlein crater on Mars in his honor.The Science Fiction and Fantasy Hall of Fame inducted Heinlein in 1998, its third class of two deceased and two living writers and editors.