Which historical astronomer established the traditions often followed in modern star maps?

Answer

Ptolemy

Ptolemy was the ancient astronomer whose cataloging of the stars laid the foundation for the tradition that many reputable astronomy organizations and historical charts rely on today. While artistic liberty has occasionally modified depictions over the centuries, his foundational work remains the standard reference for the classical portrayal of the constellation.

Which historical astronomer established the traditions often followed in modern star maps?
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