Quote:
Originally Posted by RickS
Thanks very much, Sam! What did you use to do the annotation?
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It's some code I've cobbled together over the last couple of years (in C#). I use a local copy of the Principal Galaxies Catalogue, but the program queries the GSC-II catalog online on demand (it's about a billion stars so it's too large to download entirely).
I was wondering what sky brightness you had when imaging to get the very dim limiting magnitude ?