#what is this
5 messages · Page 1 of 1 (latest)
Here is the data if you want to try
Can it be just water?
@raw moat It's in the the data not your processing. Check some of the subs. One at the start middle and end of your imaging session to see if it crept in over time or was present the whole time. It looks to me like stray light. did your scope get frost on it? Or maybe you scope was pointing near a light partway through your session.