Fifth planet (hypothetical) Fifth planet (hypothetical) In the history of astronomy, a handful of Solar System bodies have been counted as the fifth planet from the Sun. Under the present definition of a planet, Jupiter is counted as the fifth. There are three main ideas regarding hypothetical planets between Mars and Jupiter. During the early 19th century, as asteroids were discovered, they were considered planets. Jupiter became the sixth planet with the discovery of Ceres in 1801. Soon, three more asteroids, Pallas (1802), Juno (1804), and Vesta (1807) were discovered. They were counted as separate planets, despite the fact that they shared an
The Web Planet In North America it was released as a single VHS. It was released on DVD on 3 October 2005 in the United Kingdom (Region 2), 3 November 2005 in Region 4, and 5 September 2006 in Region 1. The Region 1 DVD has been out of print since 2013. The Web Planet The Web Planet is the fifth serial of the second season of the British science fiction television series "Doctor Who", which was first broadcast in six weekly parts from 13 February 1965 to 20 March 1965. The serial involves the time traveller the First Doctor (William Hartnell) and