The Sky at Night — Episode 9: Mizar

You are watching the episode Mizar Mizar, the second star in the 'handle' of the Plough, has a faint companion, Alcor, easily visible with the naked eye. Use a telescope and Mizar is seen to be double; and the brighter member is again double. Patrick Moore talks about Mizar and speculates as to the view from a planet moving in this system.