What was the era of Hipparchus's active work?
162-127 BC
300-250 BC
420-380 BC
210-170 BC
Answer
Hipparchus was an ancient Greek astronomer and mathematician. He is considered to be one of the most important astronomers of antiquity. Hipparchus's active work was in the era of 162-127 BC. During this time, he made many important contributions to astronomy, including the discovery of precession and the invention of the astrolabe.
The Legacy of Hipparchus: Exploring the Cosmic Genius
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