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Astronomy and Space

Observation and Measurement

Who is considered the founder of systematic astronomy?

The Greek scientist Hipparchus (c. 190–120B.C.E.) is considered to be the father of systematic astronomy. He measured as accurately as possible the directions of objects in the sky. He compiled the first catalog of stars, containing about 850 entries, and designated each star’s celestial coordinates, indicating its position in the sky. Hipparchus also divided the stars according to their apparent brightness or magnitudes.



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