over exposed corner

ozzmozizz

i have a 224mc camera and i have done lunar and planetary with it with out any issues, but last night i did some dso on m51 and when live stacking image looks fine , but when i stretch it no matter how much from very small stretch to extreme i see a blue aurora in the top right corner, i am sure this is not normal, there was no bright light source coming in, no guiding because my other cam did not pick up any stars

total StackedFrames=40

TotalExposure(s)=1095

Gain=462

Exposure=30

Temperature=15.3

Sam@ZWO

this is amp-glow and you can use dark to calibrate

ozzmozizz

thank you Sam, i was a bit worried but that would be an easy fix.. thanks again

Support@ZWO

Yes, Dark frame will be able to calibrate all amp-glow.