otti242 wrote: Sounds good, but how much diskspace is needed for all index-files?
Have a look at the fourth image (the one with the overview of the index files) which also contains the sizes involved. By the way, you only need the ones with the green check marks. The ones with the red crosses and triangles are not needed for successful plate solving.
Yeah, I have multiple scopes, all with different focal lengths. I'd rather download and have all of them now then find out I need another one when I'm out in the field without internet access.