Plot: Cygnus, the Swan, is one of the most beautiful of the constellations, and it contains some spectacular objects, including the very luminous Deneb - a star at least 10,000 times more powerful than the Sun-and the lovely coloured double star Albireo. Very recently astronomers have found a new object in Cygnus-a star surrounded by a highly luminous disc from which planets may be in the process of formation