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The Sky at Night · S17 E5

How Big are the Planets?

1973-04-30

Patrick Moore discusses with Gordon Taylor and Dr David Allen new ways of measuring objects in our solar system.

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Season 17 Episodes

  • E11973 - an Exciting Year!
  • E2Practical Work in the Observatory
  • E3Sirius - The Brightest Star
  • E4The Eclipse of the Century
  • E5How Big are the Planets?
  • E6The Colours of the Stars
  • E7The African Eclipse
  • E8Navigational Astronomy
  • E9Venus - A Cratered World
  • E10The Moon Illusion
  • E11The Volcanoes of Mars
  • E12When Mercury Crosses the Sun
  • E13Pioneer to Jupiter