Wednesday, January 8, 2014

Active region 1944

The last few days have seen some remarkable images of the sunspots contained within active region 11944 that are making their way across the face of the Sun.  While I had taken a couple images late last week (posted here), I wanted to revisit the area this morning during a break from work.  Working at home this morning allowed me to run out and take a look at this region once again.  Seeing was a little above average with some some thin cirrus that are heralding an arriving cold front (maybe I should say a 'cooler front' in light of what our east coast brothers are experiencing this week).

All images were taken through my Stellarvue 90mm triplet and  Lunt Solar Systems Herschel Prism.  First, a whole disc image using my Canon T2i and a 2x Barlow lens- it is a single to enlarge.
Next, is a stack of 500/1000 frames captured with my ASI120MC video camera.  This comparison to the above image shows the benefit of stacking multiple images to obtain a higher and sharper level of detail than can be achieved in a single shot as above.  Again, click to enlarge.

Finally, an image of the same region using the ASI120MC and a 2x barlow.  This active region is massive, and with a proper solar filter can be seen without optical is perhaps the most impressive spot region I have seen in several years.  Click to enlarge.

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