Moon and its effect on Milky Way?

Started 2 months ago | Discussions thread
Bill Ferris
Bill Ferris Veteran Member • Posts: 4,342
Re: Moon and its effect on Milky Way?

A pristine night sky with no Moon has a surface brightness of about 22.0 magnitudes per square arcsecond. A full Moon in those same conditions increases the sky's surface brightness to roughly 18.0 magnitudes per square arcsecond. That's 4 magnitudes or 40x brighter.

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