Extreme Closeup of AR 2887
Taken by Dr. J. Wayne Wooten on October 25, 2021 @
Pensacola, Florida
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
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Date Taken: Unavailable
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Details:
Just for fun, after routine imaging with Eon 72, 2.5" Baader, orange filter, 12 mm Plossl, and iPhone 6s, I played with the contrast settings. Sunspots are not BLACK, but umbra still about 4,300 K hot, like orange K class Arcturus. Found some subtle color (and temperature?) variations I have never noted before in this closeup. Last two shots are with Lunt 60, B 1200 Ha diagonal, 12mm Plossl, iPhone 6s. Note short exposure on last shot shows flaring around this active unstable pair.
Photographer's website:
https://www.facebook.com/groups/80860174301/photos/?filter=albums
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