Pages

▼

Wednesday, May 19, 2010

Photo of an “Infralateral Arc”

Infralateral Arc, above Saint Louis, Missouri, USA

A rainbow-like “infralateral arc”, seen today over Saint Louis, is an optical phenomenon caused by sunlight being refracted through horizontal rod-shaped ice crystals high up in the sky.
at

2 comments:

  1. AnonymousWednesday, May 19, 2010 10:03:00 PM

    Wow! I've never heard of an infralateral arc.

    ReplyDelete
  2. Mark S. AbelnThursday, May 20, 2010 7:20:00 PM

    Neither had I until I looked it up. Didn't know such a thing existed!

    ReplyDelete