https://earthsky.org/space/glory-on-an-exoplanet-wasp-76b-exoplanets-glories/

relevant image:
https://earthsky.org/upl/2024/04/Glories-Earth-Venus-simulated-views-March-11-2014.jpg

"This is a _simulated_ comparison of a glory on Venus (left) and Earth (right)."

So people are actually simulating the effect - which means that we can do it in
POV-Ray.

Hell - even if we just scanned straight across the middle with eval_pigment ()
and made a spline function or a color_map directly, then there you go.
Instant glory to be used as a layered texture, a screen.inc object, or however
else you might decide to implement it.

K.I.S.S.    :*

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