Sunfish
20-04-2020, 10:28 PM
I stacked all the data from several VSP nights into RHa,GOiii,BOiii and RHa,GOiii,BOiii+LRha just to see what happens. 90 minutes or more for each filter.One advantage of stacking a lot of ,even poor ,data is that less stretching reveals more of the different star colours with very little processing.