Supplement Your Day With This Calcium Image of the Sun

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All praise and glory to Allah (Almighty), The most wonerfull magnificent creator

Lights in the Dark

CaK image of the Sun by Alan Friedman (All rights reserved.)CaK image of the Sun by Alan Friedman (All rights reserved.)

Our Sun may be made up of 98% hydrogen and helium but the remaining two percent comprises many other elements, detectable by their unique absorption lines within the gamut of white light we receive on Earth. One of those elements is calcium, which exists in ionized form in relatively tiny amounts in the Sun’s chromosphere – but still enough to allow images to be made using special filters aligned to the wavelength of its absorption line. And this is precisely what photographer Alan Friedman did on April 12, 2015 when he captured the image above!

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