I’m currently using NIKON D5600 for my untracked astrophotography, and depends on the target I need to take up to 100 exposures of 15-20 seconds each.

I have a manual shutter remote and I manually click it right after the previous exposure is finished processing in the camera, but going through the captures it’s pretty clear that after some threshold (30-50 15 seconds exposures) the image quality just keep getting worse and worse to the point where the contrast of the image is nearly non existent, there are almost no details and everything seems washed out.

I’ve been wondering if that’s a common problem? is that caused by the sensor overheating? (I’m shooting from a relative warm place) is there a solution to it? (maybe wait a couple of extra seconds between captures?)

Thanks a lot for the help 🙂