Contains:  Solar system body or event
Solar prominences: Complete processing redo of 25 minute animation in Ha with excellent seeing!, Rick Veregin

Solar prominences: Complete processing redo of 25 minute animation in Ha with excellent seeing!

Acquisition type: Lucky imaging
Solar prominences: Complete processing redo of 25 minute animation in Ha with excellent seeing!, Rick Veregin

Solar prominences: Complete processing redo of 25 minute animation in Ha with excellent seeing!

Acquisition type: Lucky imaging

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Description

This is a complete processing redo of my previously posted animation. I just wasn't totally happy with the original processing, since the raw data itself was so good. For all the details of the how I captured this image, please  see my original post. Each frame is from 15 seconds of video taken 15 seconds apart, so the 49 stacks in this animation represent 25 minutes of real time. My final animation is 10 seconds long, so is sped up a factor of 150X over real time.Please also note  there are a series of small flares coming along the limb from the north (and slightly east, probably due to the Sun's rotation), cutting across the group of filaments, which I had missed in the original animation. 

With 1800 frames in each video, my previous processing took only 5% of the frames in AutoStakkert using 3X drizzle. This time I took 10% but using 1.5x drizzle only. This gave a cleaner result with fewer glitches. The 1.5X drizzle seems to improve the image, but based on my experience the 3X drizzle was not optimal. As before I found that Topaz Sharpen AI is actually very subtle in sharpening: one can choose to remove motion blur, focus blur, or overall softness. I used Focus blur-very blurry at the AI generated settings and got a wonderful natural improvement in focus. Unlike Registax,  in Topaz Sharpen AI did not have to fight with magnifying pixelation defects, Topaz treats pixelation as noise. The final gif was produced in Photoshop. With the better detail Photoshop actually was able to do an autoalign of all the frames, which saved a huge amount of work! Also in Photoshop I added  a red Halpha fill layer using  color burn. The final image was upscaled 3x and cropped in for a closeup.

The image orientation from TiltingSun is shown below.image.png

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