Stellarmate producing some images using stacking?

[solpete]

Hi!

I have a raspberry with stellarmate on it. Newtonian 10" and an sbig camera, filter 8X wheel and some other stuff.

I can use the button in the focus- or camera tab in stellarmate (kstars?) to grab images using anything between 0,1s - 10s in exposure time.

But how do I take stacked images to produce "nicer" results? I was thinking about how to do e.g. 2 minute exposures with various filters but I dont know how to add them up and editing the results within Stellarmate. Could you help me?

Thank  you!  Below is one of the short-exposure-time photo I took (I know the focus and flat field looks lite c*** )...

/Peter W

Peter