The Sky at Night — Episode 6: Transit of Venus

You are watching the episode Transit of Venus On the morning of the 8 June 2004, the planet Venus passes in front of the Sun, a once in a lifetime event. This rare occurrence has only been observed five times ever, and in the past was used to calculate the astronomical unit.In this special programme, Patrick Moore previews the transit with advice on viewing and photographing the Sun, and explores the planet Venus and future missions.