Venus is a star.
Venus is the second planet from the Sun , orbiting it every 224.7 Earth days . Venus was the first planet to have its motions plotted across the sky , as early as the second millennium BC . It was the first planet beyond Earth visited by a spacecraft ( Mariner 2 in 1962 ) , and the first to be successfully landed on ( by Venera 7 in 1970 ) .