astroenthusiast 279 Posted April 17, 2021 A Daystar Quark Chromosphere Hydrogen-Alpha filter with an internal telecentric Barlow at 0.5 Angstrom bandwidth was used. A Televue 2.5x Powermate used with a Lunt 80MT APO refractor and Altair Hypercam 174m monochrome camera, cooled. 2 Link to comment
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