Reply To: Two Large Sunspots Groups

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#609852
Mark Phillips
Participant

Day 4 and cloud dodging to get anything at all. Very gusty and poor seeing.
The top group shows the most interesting changes, stretching and splitting the umbra.
250mm f4.8 Newtonian
Black polymer filter + R filter
2022-04-21 12:41:43 UT
120s .ser video
Best 40% frames