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Old 14-05-2021, 10:52 AM
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Merlin66 (Ken)
Spectroscopy Wizard

Merlin66 is offline
 
Join Date: Oct 2005
Location: St Leonards, Vic
Posts: 8,422
Solar activity 14 May 2021

At least there's less solid cloud but a very unsteady atmosphere.....
Only LW and CaK.
AR 2822 continues to impress, larger spot with penumbra and a few scattered small spots, AR2823 looks like a small "black hole" on the solar surface - very black with no penumbra.


I've tried an inverted CaK of AR 2822/2823 just for interest.
Enjoy!
(Hmmm the circular artifact which crept into the full disk CaK came back when uploaded to IIS!!!!! Re-done, re-saved and uploaded. Hopefully OK this time)
Attached Thumbnails
Click for full-size image (Sun_093847.jpg)
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Click for full-size image (Sun_093847_invert.jpg)
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Click for full-size image (Sun_093704.jpg)
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Click for full-size image (Sun_093745.jpg)
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Click for full-size image (Sun_094631.jpg)
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Click for full-size image (094522.jpg)
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Click for full-size image (094741.jpg)
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Click for full-size image (Sun_093501_clean.jpg)
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Last edited by Merlin66; 14-05-2021 at 03:20 PM.
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