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Post by brianb on Apr 21, 2012 9:04:49 GMT
Another busy day on the Sun ... Sky transparent & seeing not at all bad. Overviews in CaK and Ha: 0935 UT 0941 UT AR 11459 is huge and complex though apparently not particularly active & may be starting to decay. 0956 UT 1023 UT 1010 UT AR 11460 is large and apparently still growing. 0950 UT 1021 UT 1008 UT AR 11461 is uninteresting except in Ha: 1020 UT ARs 11462 and 11463 are fairly close together in the south west. Both groups are medium sized & with moderate activity: AR 11462, 0957 UT AR 11463, 0959 UT 1033 UT 1011 UT Prominences are unusually subdued with two small but interesting ones in the north east ... 1027 UT ... and north west. 1028 UT
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