You can tell how light polluted the sky is by looking up at night. For example, I often use the stars of the little dipper, the dimmest of which is about magnitude 4.5. Can you see that? If so, then you have only moderate light pollution.

If you can't see the little dipper at all, then you have a lot of light pollution.

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"I'm as accurate as any psychic. And I'm a cartoon!" -- Squidward

"Arrrgh, the laws of physics be a harsh mistress!" -- Bender