Thanks Peter. Sure is confusing for me too. I did actually go in search of data on this subject, but I didn't come up with anything! Only plenty of info on the rings, so thanks for that link.
Thanks Ray. I say "why am I doing this" almost every night lol. Right now here where I am, it's clear almost every night, with absolute crap seeing ranging from zero to 2/10. Damned jetstream!
I'd rather it clouded out with no hope of imaging I think. Oh well, it WILL come good eventually..
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