Wikipedia

Astronomy Astronomy (from Greek: ἀστρονομία) is a natural science that studies celestial objects and phenomena. It applies mathematics, physics, and chemistry in
Jupiter Frank H. (1982). The physical universe: an introduction to astronomy. Series of books in astronomy (12th ed.). University Science Books. p. 426. ISBN 978-0-935702-05-7
Astronomer An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe
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