Contains:  Solar system body or event
Sunspots Day 2, Steve Lantz

Sunspots Day 2

Acquisition type: Lucky imaging

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Description

We had clear daytime skies for the second day in a row, so I imaged sunspots 2785 and 2786 again. This time I used my William Optics 4-inch refractor with a Thousand Oaks solar filter and ZWO luminance and H-alpha filters stacked. I used 8 ms exposures and with a 640x480 ROI was able to get about 120 fps. One of three 20-s videos had much better seeing than the other two so I used it alone. The total frames were about 2400 out of which I kept the 30 best frames for stacking. Even though the image was shot in filtered white light, I was surprised at some of the detail in the surface granulation.

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Revisions

  • Sunspots Day 2, Steve Lantz
    Original
  • Final
    Sunspots Day 2, Steve Lantz
    B

B

Description: Image revision with stronger noise suppression and better contrast and sharpening.

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Sunspots Day 2, Steve Lantz