In various wavelengths, wider and narrower bands.






ASI 120MM (cooled), Baader K-Line Filter 1.25″ (double stacked), Canon EF 200mm f/2.8 L II USM, mountpusher, EQ3-mod
ASI 178MM (cooled), Lunt CaK B600 LS6CAKMDS2, Skywatcher 72/420 ED-APO, mountpusher, EQ3-mod — not ideal, but enough to dig out some protuberances.
ASI 178MM (cooled), Baader K-Line Filter 1.25″ (double stacked) mapped to cyan, ZWO IRpass 850 mapped to orange, 3x Barlow, TS-Optics 76/342 TS76EDPH, mountpusher, EQ3-mod
ASI 178MM (cooled), Lunt CaK B600 LS6CAKMDS2, Skywatcher 72/420 ED-APO, mountpusher, EQ3-mod
ASI 178MM (cooled), Lunt CaK B600 LS6CAKMDS2, Skywatcher 72/420 ED-APO, mountpusher, EQ3-mod, bad seeing
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