The sun rotates so slowly that it takes about a month to complete one turn, meaning that activity on its farside is hidden for up to two weeks at a time.

　
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  • 太陽(yáng)自轉很慢，大約一個(gè)月才能轉一周，這就意味著(zhù)太陽(yáng)另一面的每次活動(dòng)會(huì )隱藏長(cháng)達兩周的時(shí)間。
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