polaris_jerry
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M81 LRGB 10x180s
in Member's Album
Posted
It was a Skywatcher Maksutov-Newtonian 190mm f/5.
The LRGB filters were exposed for 10 x 3 mins each.
The QHY23 was cooled to -20 degrees.
The RGB were binned 2x2 and then upscaled to match the L which was 1x1.
Aligned and stacked in ImagesPlus, with colour combination and processing in PS CS.