Sunspots, AR2672
Taken by Alexandre LHOEST on August 29, 2017 @
St Veran Observatory, France
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: 2017:09:26 22:29:54
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Details:
The pictures are taken with a D250 solar newton made on purpose, for Ha and deep blue imaging.
Here, the setup involves a Solar Spectrum Ha Etalon along a telecentric lens; it reaches a focal length of ~8.75m.
Photographer's website:
No URL provided.
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