after my last visit to the Segneshütte in the morning, skiing down under a beautiful blue sky and below a Fog Sea or Mer de brouillard oder Nebelmeer, this amazing Round Rainbow, a rainbow in a full circle! started to show up. i have never seen something like this. these Photos are not edited, are not done over with Photoshop, I could have taken 100's of them, it was so impressive.
So I googled for Ask A Scientist and Ask A Scientist says:
A rainbow is round because the process is based on angles. Light from the sun hits the little water droplets after a rain. The water droplets act
like little prisms. Different colors are sent out at different angles. The
sun must be behind you.
but the sun was in front of me, in the center!
does anyone know the answer?
days later:
ok, on the internet i found:
Optical Illusions
Atmospheric Optics
Light playing on water drops, dust or ice crystals in the atmosphere produces a host of visual spectacles - rainbows, halos, glories, coronas and many more. Some can be seen almost every day or so, some are once in a lifetime sights.
I guess it's this:
Ice halo
Ice halo displays range from the familiar circle around the sun or moon to rare and prized events when the whole sky is webbed by intricate arcs.
Tiny ice crystals in the atmosphere create halos by refracting and reflecting light.
Halos bestow a delicate beauty to the skies and tell us about the crystals inhabiting the clouds.
A halo is a ring around the moon or sun produced by refraction of light through a thin cloud of ice crystals. The halo had red colors on the inside of the ring shifting to blue on the outside.
thank you web for answering my FAQ
