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


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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