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LeoTriplet M66 group LRGB
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Camera Zwo asi 1600mm-c with Zwo 36mm LRGB filters.
All images @ -30c and Unity. RGB binned (mostly for faster download).
5min Luminance total 3h 45min
3min 45sec Red 2x2 bin total 1h 30min
4min 15sec Green 2x2 bin total 1h
5min and 3min 45sec Blue 2x2 bin total 1h 14min
All in all ~7h 30m
Calibrated with bias and darks.
I did not get all the data I wanted before nights turned to twilight for the summer.
I tried imaging this last year, but made a mistake in goto, and missed NGC 3628 so this is an improvement 