EPISODE · Jun 28, 2025 · 25 MIN
認識北極星（下）－ 誰是「北極星」地球說了算！
from 吳老師與Maggie聊天文與生活 · host Maggie K
一、由地球的地軸指向來決定「北極星」。二、歲差造成了「年」的長度不一致。三、第一位發現歲差的天文學家。四、古代中國第一位發現歲差的天文學家。
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認識北極星（下）－ 誰是「北極星」地球說了算！
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