Quote:
Originally Posted by BPO
Bright stars and the MW passing through the FoV of the SQM-L(E/U) models will cause lower readings, even at truly dark sites during new moon, so best to aim at something like the SCP for consistent numbers.
|
Up at the farm I got a difference of around .75 between the MW around Crux and the sky to the north west. The best I've seen up there was high 21s (need to get rid of traffic on the New England Hwy), and in the morning it was high 18s in the west between astronomical twilight and nautical twilight. 18.5 is about as good as it gets at home.
SCP would be a poor choice here - that's the direction of maximum skyglow.