With a front ERF, Altair Astro’s Triband, 115mm, Tecnosky 102/1100 refractor, Lunt’s CaK B1800 and the ASI 533MM camera, I obtained the following:
CaK, 2.4Å
CaK 2.4Å, colorized
With a Tecnosky 102/1100 refractor, Herschel prism, ND 0.96, a filterwheel and the ASI 533MM camera, I obtained the following:
Antlia 3nm hydrogen alpha. The disk is clearly continuum, but the prominences were obvious even on the live view
Altair Astro’s G-band filter, 2nm fwhm at around 430nm cwl
