Quote:
Originally Posted by Placidus
The effect of a big bright moon can be every bit as troublesome as the effect of city lights without moon, i.e. no better than in Sydney suburbs.
Since you're stuck with the moon, the choices are:
(1) As Colin said, bright broadband targets, like open clusters and bright galaxies, preferably those in a different part of the sky from the moon. There is no filter that can block out moonlight but let the light from a galaxy through.
(2) Emission nebulae through narrowband filters, most particularly H-alpha, and again in a part of the sky furthest from the moon. A 6 nM wide H-alpha filter can let through say 90% of the light from an emission nebula, but block out all but 6/(700-400) = 2% of the moonlight.
Hope that helps.
Have fun!
Mike
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Indeed, a full moon delivers a sky not better than Bortle 8 and a 50% Moon Bortle 5, even without artificial light pollution.
Indeed Placidus gives good advice.