Niels V. Christensen
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Mainly (luminance) TTS-160 panther. TV NP127is F5.2. ZWO asi1600MM. Baader 36mm Lum filter.
M31 galaxy composed as a Lum - color picture. For the details please see the description here: http://astrob.in/312071/B/. A higher resolution is located here: https://www.dropbox.com/s/y21lilkhp3zmxew/M31nvcLumMergeOldLum16inc3picNHColorPic-2017-Final33pctFadeMinFilter.jpg?dl=0