2017 November 22 Sun - huge filament
Seeing is very bad today and it is even not possible to achieve a good focus.
The solar surface is dominated by a huge filament located in the SE sector.
Telescope: AP Starfire EDT 155 mm f/9.
stopped to 50 mm (f/28) for disc images, with 4X telecentric lens (f/36) for closeups
filter: Solar Spectrum SO1.5/0.3A with CERF prefilter
Camera: Imperx 4M15
2017 November 22 Sun - huge filament
2017 November 22 Sun - huge filament
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Re: 2017 November 22 Sun - huge filament
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