Quote:
Originally Posted by Slawomir
I didn't get a chance to guess! 
Yes, your comparison shows very clearly that dark skies rule.
Even with 3nm filters, there is a significant reduction in data quality collected when the moon is up, particularly for fainter objects. |
I'm good like that. I also like to give people presents early, even if they don't want them early.
Dark skies definitely rule!
Quote:
Originally Posted by gregbradley
Interesting comparison. Of course I would I have thought the first one was the longer.
A might also add various scopes perform differently in high moon. I would not blanket assume all are the same in this regards.
For example my AP Honders Riccardi has the best ability to cut through light pollution of any scope I have ever used. It has lots of baffling and an oversized tube for the size of the mirror (14 inch tube, 12 inch mirror great for thermal currents as they drop off to the side where a fan sucks them out, very clever).
But yes there is no substitute for a dark site most noticeably when you go for the fainter objects. Bright objects are still very accessible from light polluted or moon skies.
I find as long as the scope is not pointing towards or near the moon narrowband with 5nm Astrodons is quite workable. But near the moon nothing saves you until someone comes out with a .5nm Ha filter!
Even then how much of the moonlight has Ha in it?
Greg.
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Ah, now there's an interesting point and one I hadn't considered. Thanks Greg. It would be interesting to see comparisons with other kits to see how they might differ.