High Res CaK K-Grains
Taken by Martin Wise on June 11, 2021 @
Trenton, Florida
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: 2021:06:11 12:40:19
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Details:
A look at some faculae and k-grains in high res Calcium K line with a re-spaced 120mm F8.3 synta lens to be diffraction limited in near UV, operating at 100mm F16 with IMX290 sensor, and full discs included from the same scope at 60mm masked with IMX253 sensor.
Photographer's website:
https://www.astrobin.com/users/MalVeauX/
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