Former astronaut Alan B. Shepard has announced plans for a U.S. Astronaut Hall of Fame that he hopes will offer a look at the heavens from an astronaut's perspective. Shepard, the first American to fly in space, said the museum will feature personal mementos of America's seven original Mercury spacemen and will be displayed in complex to be built near Cape Canaveral, Fla. The Hall of Fame "will explain space travel from the astronauts' point of view" with photographs, displays of training equipment, personal log books, clothing and souvenirs of the nation's first corps of astronauts, Shepard said Monday. He said the attraction, to be opened in 1990, will share an 18-acre complex with the U.S. Space Camp of Florida and a 200-room hotel located in Titusville, just outside the gates of the Kennedy Space Center.