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The Celestial Sphere and Time

  • Gerald North

Abstract

The Greek philosopher Ptolemy summarised the ancient view of the structure of the Universe in about AD 140.This view placed the Earth at the center of the Universe with the Sun, Moon, planets and stars attached to crystal spheres, concentrically arranged, that revolved about the Earth.

Keywords

Great Circle Celestial Body Cardinal Point Local Solar Time Sidereal Time 
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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