Full-disk images - 2025
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
 15 May 2025 Ha |
 Comparison 14 bits vs 8 bits |