彩さい層そう

noun

chromosphere

Technical term in astronomy referring to the layer of the sun's atmosphere above the photosphere.

• 太たい陽ようの彩さい層そうは、皆かい既き日にっ食しょくのときに肉にく眼がんで見みることができる。

  The sun's chromosphere can be seen with the naked eye during a total solar eclipse.