Sunspots AR 4478 & 4479
Taken by Sylvain Weiller on June 30, 2026 @
Jerusalem, Israel
Click photo for larger image
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: Unavailable
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Details:
Both sunspots are barely fitting on the Player One Saturn M SQR sensor (I had to turn the camera diagonally) using: Cosmos Achromatic Refractor 152 / 900 (FC 5.9) + 160 mm Altair front D-ERF + Quark Chromosphere. Activity remains very low.
SER file 21 GB,
Binning=1x1,
Bit depth=14bit,
ROI=3008x3008 (full sensor)
Shutter=3.000ms,
Gain=246 (41%),
Gamma=1 ...
Number of frames selected in AS4 120 of 1157.
I have added a detailed view of each group at a faster FPS for better registration with a ROI :
Frames captured=2768
FPS (avg.)=46
File type=SER
Binning=1x1
Bit depth=14bit
ROI=1964x1254
Shutter=3.000ms
Gain=237 (39%)
Gamma=1...
Number of frames selected in AS4 10%.
Capture: FireCapture, Processing: Autostakkert!4 with convolution, GIMP to increase visibility of details, SolarGun for colorizing and adding Earth at scale.
Photographer's website:
https://http://sweiller.free.fr/
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