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Sol - 25 May 2020


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About this observation
John Hughes
Time of observation
25/05/2020 - 11:58
Observing location
North Essex
William Optics Z61 Refractor
ZWO ASI174mm Camera
Quark H-alpha Chromosphere Filter
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 The Sun, 25 May 2020 with prominence.

Capture details
An 500 frame video of the chromosphere was taken to reveal the surface detail of the Sun. The exposure settings were then increased to deliberately overexpose the surface and show the prominence and a second 500 frame video was obtained.
Both videos were then stacked in Autostakkert 2 and integrated using the best 50 frames to create two separate image files.
Processing details
These two files were then processed with histogram, contrast adjustments and sharpening in PixInsight.
The prominence image was then laid on top of the chromosphere and the position adjusted to match the arc of the Sun’s limb. A mask was then used and painted away in Affinity Photo to reveal the chromosphere beneath.
Image acquired using;
William Optics Z61 refractor.
ZWO ASI174mm camera.
Quark H-alpha filter.
Skywatcher EQ6r-Pro mount.
Nivea Factor 15 Sun Screen!
Light cloud was drifting in throughout the session and seeing was fair.
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