I quite often observe planets during bright moons (provided they are there, of course).
What killed last night's session was dew. After pack-up I looked at the hygrometer and it read 88%. What's worse is that atmospheric crud meant that it left deposits on the corrector when it dried off inside.
Think I read on Cloudy Nights some time ago that a number of experienced observers don't see the moon as much of an impediment to planetary viewing.
Mark.
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