(meteorobs) Light pollution and Moon

[Richardson, Terry R.]

Karl,

It is not a dumb question at all and the exact answer is quite complicated howerever light pollution and the moon together will result in an overall lower lm when together.

Clear skies,

Terry Richardson
Dept of Physics and Astronomy
College of Charleston

-----Original Message-----
From: meteorobs-bounces at meteorobs.org on behalf of Karl Antier
Sent: Tue 12/20/2005 4:08 AM
To: Global Meteor Observing Forum
Subject: (meteorobs) Light pollution and Moon
 
Hi all meteor observers !

Maybe a dumb question... But it turned again and again in my head for
the last weeks, so I was wondering if someone here could stop it !
If someone is observing in town, and that it's average lm is closed to
5.0 during clear moonless skies, will this lm decrease if the Moon rises
and that lm under pure skies is close to 5.0 in rural areas ? I don't
know if the question is very clear, but it should mean : do light
pollution and moonlight interfere to give lower lm ?

To give an example.
In a rural area, the lm without Moon is 6.2. With the Moon, it goes down
to 5.0.
Will a city sky of lm 5.0 in the first case go down to 3.8, or will it
remain 5.0 ?

Thanks in advance for your answer !
And if you allways don't understand the question, I'm really sorry, but
can try to formulate it another way, if you want (just ask! )

Clear skies !
Karl



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