WebLower numbers indicate darker skies. For example, Big Bend Ranch State Park has a Bortle Scale rating of 1, while Cedar Hill State Park, near Dallas, has a Bortle rating of … WebLight Pollution Map w/ Bortle On the left is a 2024 satellite image of AZ showing light pollution from the NOAA National Geophysical Data Center. On the right is a 2015 light pollution map showing sky brightness at the …
The Bortle Dark-Sky Scale - University of Montana
WebLight Pollution Map w/ Bortle. On the left is a 2024 satellite image of AZ showing light pollution from the NOAA National Geophysical Data Center. On the right is a 2015 light pollution map showing sky brightness at the … WebOct 10, 2024 · A more comprehensive standard that uses limiting magnitude as its basis is the Bortle Dark-Sky Scale, created by amateur astronomer and Sky & Telescope writer John Bortle . It first appeared in the … tlx 015
Interactive Sky Chart Map Your Night Sky - Sky
WebApr 14, 2024 · Some Early Observations - posted in Beginners Forum (No Astrophotography): The weather was great in my area this last week. At least three nights of totally clear skies. The dark skies chart website basically had four dark blue squares from 9PM onward. I observed from 9PM to 10PM each night. Sunset was at ~8PM. Im using a … WebBortle Scale. The level of light pollution in a certain area can be measured on a scale ranging from 1 to 9 which is known as the Bortle scale. Use the slider above to gradually … WebJul 3, 2024 · The darkness is about the same as a first quarter Moon illuminating a dark sky. It's far from great, but if you're used to Bortle 9 for example it makes a huge difference, of course. If you're driving to a Bortle 5 spot for a night of stargazing, I'd … tlx 015 ease green