Hipparchus

英[hɪˈpɑ:kəs]

美[hɪˈpɑrkəs]

基本释义

依巴谷环形山

英英释义

Noun

1. Greek astronomer and mathematician who discovered the precession of the equinoxes and made the first known star chart and is said to have invented trigonometry (second century BC)

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