Kalli nassin da ke ƙasa sannan ka amsa tambayar daga baya a cikin wannan yaren kamar yadda nassin yake: Passage: An yi rikodin lura da sunspots a lokacin daular Han (206 BC <unk> AD 220) ta masanan taurari na kasar Sin, wadanda suka kiyaye bayanan wadannan lura har tsawon ƙarni. Averroes kuma sun ba da bayanin sunspots a cikin karni na 12.
ƙarni na 17