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Active Sun 12 Apr


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The Sun is getting pretty active these days. Three major areas of activity in the northern hemisphere, the group just to the east of the meridian (AR 11190) looks quite "flary" in my Ha closeup.


2011 Apr 12, 1447 UT. Solarscope 60, 2.5x Powermate, DMK21

Interesting activity on the NE limb where a new AR is rotating into view. The bright projection was actually brighter than the disc in Ha!


2011 Apr 12, 1449 UT. Solarscope 60, 2.5x Powermate, DMK21

There is an interesting "detached" prominence on the SSW limb ...


2011 Apr 12, 1454 UT. Solarscope 60, 2.5x Powermate, DMK21

... and a huge, complex and beautiful one on the NW limb, which shower clouds prevented me from doing full justice to.


2011 Apr 12, 1458 UT. Solarscope 60, 2.5x Powermate, DMK21

I did not get a chance to make observations in white light or closeups in CaK but I did get whole disk images in CaK and Ha.


1415 UT. Coronado PST CaK, prime focus, DMK41


1421 UT. SOlarscope 60, 0.5x focal reducer, DMK41

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