Broadly, yes. The key term you are looking for is "exposure stacking". See for example https://markus-enzweiler.de/software/starstax/ https://markus-enzweiler.

Broadly, yes. The key term you are looking for is "exposure stacking". See for example https://markus-enzweiler.de/software/starstax/ https://markus-enzweiler.de/software/starstax/ and https://www.cloudynights.com/topic/719318-stacking-data-from-multiple-imaging-sessions/ https://www.cloudynights.com/topic/719318-stacking-data-from...