Calcium II K images - 2024
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 0.14 nm FWHM single-cavity filter
Takahashi TOA 150 mm
with 65 mm or 75 mm aperture stop
21 May 2024
Altair 393-3 nm |
21 May 2024
Ca K 0.14 nnm |
16 June 2024
Altair 393-3 nm |
16 June 2024
Ca K 0.14 nnm |
16 June 2024
Ca K 0.14 nnm + 0.14 nm |
|
7 March 2024
Altair 393-3 nm |
7 March 2024
Altair 430-2 nm |
7 March 2024
Continuum 540 nm |
10 May 2024
Altair 393-3 nm |
10 May 2024
Ca K 0.37 nm |
10 May 2024
Ca K 0.37 nm + 0.14 nm |
 23 Feb 2024 Ca K 0.37 nm |
 23 Feb 2024 Altair 393-3 nm |
 23 Feb 2024 Altair 393-3nm |
7 March 2024
Ca K 0.37 nm |
7 March 2024
Ca K 0.26 nm |
7 March 2024
Ca K 0.37 nm + 0.14 nm |