View Full Version here: : Planetary observing during full/partial moon
yagon
10-03-2006, 08:52 AM
Last night I observed Saturn from my backyard in Sydney.
The moon was big and bright in the sky. In addition, I only had 30 minutes or so, so my eyes didn't really have time to adjust, especially with some lighting nearby.
However, I enjoyed the view of Saturn, but it wasn't as good as a week ago when I had more time and a darker environment.
My question is: When observing bright objects (eg Saturn), is the effect of ambient light and un-adjusted eyes decreased? That is, can one enjoy observing bright objects during a full moon and with lights on nearby?
Robert_T
10-03-2006, 09:08 AM
Hi Yagon,
So long as the moon isn't full and very near to the planet it really should have very little impact on your view. Far less in any case than the effects of atmospheric "seeing" (turbulence) which is the No. 1 factor in how good a view you'll get of planets. This can vary drammatically over a single night and between nights.
cheers,
MarkN
10-03-2006, 11:00 AM
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.
davidpretorius
10-03-2006, 12:19 PM
moon is fine for viewing.
seeing ie stability of the air and getting your eye/brain trained to pick up surface / ring detail is then next.
because i use the white ovals a lot on jupiter to help process my images, my brain / eyes now picks them up when viewing thru an eyepiece.
i spose another term for experience??
astroron
11-03-2006, 01:35 AM
Sometimes detail on Jupiter is quite pronounced during daylight, I was able to see quite alot of detail on Jupiter when Comet Shoemaker-Levy 9 crashed into Jupiter in 1994.
I have just come in after observing Saturn and the Moon and except for some whispy clouds was not affected at all.
it is amazing what detail you can getout of jupiter duruing the day aint it! :)
the monn only efecet viewing when its close to the planet... you geta washed out effect
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