"Coronium" Observed for the First Time During the Total Solar Eclipse of 7 August, 1869

"Coronium" Observed for the First Time During the Total Solar Eclipse of 7 August, 1869

Coronium, a predicted chemical element, was detected during the total solar eclipse of 7 August, 1869, when astronomers Charles Augustus Young and William Harkness independently observed a green emission line in the coronal spectrum during the eclipse, which crossed through Canada, parts of the United States, Alaska and eastern Russia. It took over 60 years before it was found that Coronium wasn't a new element, but actually highly ionised iron.

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07/08/1869

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