Thanks for your reply Ronald. How did you find the asteroids in the image? When I stack many subs, the rejection usually gets rid of transient phenomena...

Also thanks for the tips on the Raspberry. I do too use a model 4, but with 4GB only. I don't think I have memory issues, though. I connect to it using VNC and by how slow it is I think I it might be draining resources too much. I also think I might have some hardware problems, with the mount in particular (HEQ5-Pro). About a month ago the mount led started blinking randomly (not like when power hungry, but rather as if the power connector was loose), then the whole system crashed (Raspberry going offline and not comming back). And near the end of my last imaging session (two nights ago) suddenly was not able to guide (as if it had stopped tracking altogether) magically recovering the next minute... Might be the winter temperatures approaching.

Regardless, I'll have a look at my OS as you suggest. I'm curious now to see if it might help with other minor issues.

Ricardo 

Read More...