ecuador wrote:Oh, one last question. DSS instructions warn us that we need one of the two background calibration options if we want to use sigma kappa clipping. But StarTools instructions warn against using background calibration. So, are you recommending we stay away from sigma kappa clipping?
The way I understand it is that sigma kappa clipping stacking mode needs background values that are the same. I can't really think of a reason why they would not be the same if stacking subs with the same exposure length and minimal drift between frames...
Ivo Jager StarTools creator and astronomy enthusiast
