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
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