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Home › Science › Astronomy › Astronomers › E

E

Arthur Eddington (1882-1944)

  • Born in England.
  • He showed that in a normal star, gravitation and radiation pressure balance each other.
  • He also showed that the life-story of a star depends upon its original mass.
  • Measurements that he made during a total eclipse of the sun confirmed Einstein’s theory of relativity.

Euctamon (fl. ca. 450 BCE)

  • Born in Greece.
  • He calculated the lengths of the seasons, starting from the summer solstice, to be ninety days, ninety days, ninety-two days, and ninety-three days, respectively.




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