Young, CA (English spelling)

Japanese: Young,C.A.(英語表記)YoungCA
Young, CA (English spelling)

…The oldest record of the corona is in Philostratus's Life of Apollonius of Tyana, where he saw a halo. There have been subsequent records of observations of the corona, and some people thought that the corona was a phenomenon in the Earth's atmosphere. However, it was William Harkness (1837-1908) and Charles Augustus Young (1834-1908) who discovered a specific emission line in the spectrum of the corona during the 1869 solar eclipse, and it was proven that the corona is part of the Sun's atmosphere. The presence of a black stain on the Sun's surface was recorded by Theophrastus of Athens, a close disciple of Aristotle. …

*Some of the terminology that mentions "Young, CA" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…コロナの最古の記事はフィロストラトスの《テュアナのアポロニオス伝》に光環を見たとある。その後もコロナの観察記録があるが,コロナは地球大気中の現象ではないかと考えた者もいたが,太陽の大気であると実証したのは1869年の日食でハークネスWilliam Harkness(1837‐1908)とヤングCharles Augustus Young(1834‐1908)がコロナのスペクトル中に固有の輝線を発見したことによる。 太陽面に黒いしみのあることは,アリストテレスの高弟であるアテナイのテオフラストスが記録している。…

※「Young,C.A.」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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