Sunspot group AR 2804
Taken by Francois Rouviere on February 26, 2021 @ Cannes, France
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Date Taken: 2021:02:27 09:19:09
  
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Details:
An ultraviolet calcium H image of the big active region AR 2804 near West limb. 210 mm Newton telescope with uncoated mirror, Baader K-line + DayStar Quark H filters.
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