atmospheric optics

[eub]

All kinds of cool stuff: sundogs, Heiligenschein, reflection and reflected rainbows, nacreous clouds.

Just for one example, you know the repeated purple/green fringes you sometimes see on a rainbow's inner edge? Seems they're an interference effect.


HaloSim software renders Martian CO₂-crystal halos:

Comments

[eub.livejournal.com]

Cool! It's tantalizingly like a 22° halo with nearly-aligned crystals. They have the two bright parts above and below, and I guess to get them at the sides like yours, the crystals would need to be randomly pitched, but all in planes aligned towards you. Seems tough to arrange.