Can ASI120 be used for deep sky imaging with Alt-az?

astro101

I have a CPC 1100 in Alt-az. I know that with this setup, the exposure time is limited due to field rotation, probably around 30 seconds, too short for traditional long exposure astrophotography. I came across the ZWO ASI120 camera on the internet and I gathered that the images are taken in a stack of short exposures in the range of 20 seconds or so, then stacked with software. I am just wondering if this camera works with my alt-az setup. Will the stacking software automatically correct for the field rotation caused by alt-az if I take dozens of exposures of 20 seconds each?

riklaunim

With "planetary camera" the most optimal exposures are up to few seconds. 10 sec may be already enough. Noise will rise rapidly, while benefit from longer exposures will be much smaller.

May people just shoot few thousand 1-2 sec exposures and the process that. With alt-az stacking with derotation would have to be used.

As for C11 - DS imaging will be hard due to long focal length. But surface-bright planetary nebulae, globular clusters etc will work. F/3.3 SCT focal reducer/corrector will also work with ASI120MM small sensor.

But in general it's not something that will give spectacular results. Can be good, better the better your processing will be.