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Astro*Dictionary by Michael Erlewine





1 article for "Selecus"

Selecus [Astro*Index]


(BC190-?) Astronomer. Born at Seleucia, on the Tigris river.

Thought to be at least part-Greek, although called a Chaldean or Babylonian, because he lived in Babylonia.

He taught that the planets revolved about the Sun, according to the view of Aristarchus. But, the view of his contemporary, Hipparchus, with his Earth- centered system, dominated thinking for the following 1,800 years. In his attempt to explain the tides, he recognized that tides occur at different times, and with different characteristics, throughout the world, and were caused by the Moon. But, he did not accept the statement of Eratosthenes, that the oceans formed a single, connected body of water.


Astro*Index Copyright © 1997 Michael Erlewine