Stacking

Forums Spectroscopy Help for a newbie? Stacking

#584422
Robin Leadbeater
Participant

Yes it is standard practise to align and stack shorter exposures with slitless spectra (on the zero order image) as it avoids guiding, effectively using the same techniques as planetary imagers to select the sharpest images (but no further processing eg sharpening etc) modern CMOS also means the noise penalty is lower than with CCD 

Cheers

Robin