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Charlie Elliott WC
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The Dutch Observatory
+33°39’15.4” N -83°54’17.6” W
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Go Curiosity Go!
December 11, 2010 on 7:21 pm | In Sun, Uncategorized | Comments Off
The sky cleared for an hour early in the morning today and than clouded over again. I decided to make closeup of AR1131 and 1133 and the structure of the umbra and penumbra can be seen quite nicely. In order to show this better I have included a normal version and an inverted verion of it. I also observed a few good sized but relative faint prominances and a few smaller ones.
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