Challenge: The Night Sky as Background (1 or 2 images only, please)

Started 3 months ago | Photos thread
Quarkcharmed
Quarkcharmed Regular Member • Posts: 487
Re: Challenge: The Night Sky as Background (1 or 2 images only, please)

The Milky Way, auroras, pollution etc aren't blue, but there's still significant blue component.

https://www.mdpi.com/2313-433X/6/9/90/htm

The well-defined triangle structure in the ℓR–ℓG diagram is the consequence that the visual radiation of the night sky is composed of three main components: the bluish twilight spectrum of the solar radiation, the green oxygen airglow, and a combination of different orange and red spectra. This third component includes the sodium and red oxygen airglow and most of the light pollution sources.

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