There is a page that discusses the B-V colour of the sky at night: http://www2b.abc.net.au/science/k2/stn/archives/archive8/newposts/60/topic60381.shtm
Colour of sky at night
Links to sites and software Posted on Jul 02, 2013 15:18- Comments(2) https://earthshine.thejll.com/?p=95
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