sunspots
Taken by Francois Rouviere on October 19, 2014 @
Mougins, France
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Camera Used: Unavailable Unavailable
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Details:
Three views of the fantastic active region 2192.
Please see caption for the H-alpha pictures; tilting the DayStar filter shifted the wavelength towards the blue wing.
The third picture was taken with a 210 mm Newton telescope with unaluminized mirror, K-line filter and x 5 Barlow.
Photographer's website:
No URL provided.
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