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The Inferior Planets

  • Gerald North

Abstract

Before the invention of the telescope the only planets known were Mercury, Venus, Mars, Jupiter and Saturn. Their true natures remained unknown, because they appeared like stars to the unaided eye. These planets could only be detected by their brightnesses and by their movements relative to the stars. In fact the word planet comes from the Greek for “wanderer”.

Keywords

Rotation Rate Angular Diameter Apparent Magnitude Royal Greenwich Observatory Apparent Diameter 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag London 2003

Authors and Affiliations

  • Gerald North

There are no affiliations available

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