Calcium II K images - 2022

Ca K Barr filter : 393.25 nm, FWHM = 0.26 nm, 2-cavity filter

Ca K Alluxa filter : 0.37 nm FWHM 3-cavity filter, and 1.5 A FWHM single-cavity filter

Takahashi TOA 150 mm with 65 mm or 75 mm aperture stop

ASI 1600 camera

12 July 2022 EO394 + Alluxa 0.37 nm + 1.5 A	13 July 2022 Alluxa 0.37 nm + 1.5 A Chromospheric fringe	17 July 2022 EO394-10nm	17 July 2022 EO394-10 + 1.5 A Chromospheric fringe	17 July 2022 EO394-10 + 1.5 A	6 October 2022 EO394-10 + 0.37 nm  +1.5 A Chromospheric fringe
12 July 2022 EO394 + Alluxa 1.5 A Chromospheric fringe	12 July 2022 Alluxa 0.37 nm + Alluxa 1.5 A
11 May 2022 Barr + Alluxa filters Chromospheric fringe	11 May 2022 396-5nm	21 May 2022 Barr + Alluxa filters Chromospheric fringe	21 May 2022 396-5nm	10 July 2022 396-5nm	10 July 2022 Alluxa 0.37 nm + Barr filters Chromospheric fringe
25 February 2022 Barr filter Chromospheric fringe	3 March 2022 Barr + Alluxa filters Chromospheric fringe	9 March 2022 Barr + Alluxa filters Chromospheric fringe	23 March 2022 Barr + Alluxa filters Chromospheric fringe	24 March 2022 Barr + Alluxa filters Chromospheric fringe	1 May 2022 Barr + Alluxa filters Chromospheric fringe

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