Viewing the "Opake Sun"
Taken by Wayne Wooten on April 7, 2016 @
Pensacola, Florida
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Details:
When I viewed large new spot AR2529 coming onto the eastern limb last Thursday, in both Ha and CaK it appeared almost as a dark hole along the limb. This reminded me of the view of our home star back in 1848, as published in "Smith Illustrated Astronomy", a high school textbook when astronomy as THE physical science students took at upper levels. Asa Smith describes Herschel's model of the visible sun on page 8 as "A large globe of fire; it is a opake body like the earth, surrounded by a luminous atmosphere." The accompanying diagram from page 11 shows how William Herschel interpreted sunspots. How things have changed!
Photographer's website:
http://https://www.facebook.com/groups/80860174301/files/
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