Results for « 喜帕恰斯 » (cmn)
11051376-n
依巴谷卫星, 喜帕恰斯, 依巴谷 卫星
Hipparchus
     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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