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Large sunspot AR 2738 swinging into view!
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09-04-2019, 03:24 PM
Merlin66
(Ken)
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Join Date: Oct 2005
Location: Junortoun Vic
Posts: 8,904
Jeff,
Well done mate!
That's what a sunspot should look like, umbra and penumbra, with surrounding faculae....
Merlin66
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