Caption: "Full featured double rainbow in Wrangell-St. Elias National Park and Preserve, Alaska."
Click on image and the next image version for the high-resolution version.
The solar axis runs through the photographer whose shadow is seen at the center bottom. The 2 cones of light rays forming the primary rainbow and secondary rainbow have their apex at the photographer. The fiducial mean opening angle of the primary rainbow cone is 42°; that of the secondary rainbow is 52° (see Wikipedia: Rainbow: Double rainbow).
See Rainbow videos below (local link / general link: rainbow_videos.html):
Credit/Permission: ©
Eric Rolph,
before or circa 2007
(uploaded to Wikimedia Commons
by User:BokicaK,
2007) /
Creative Commons
CC BY-SA 2.5.EOF
Image link: Wikimedia Commons:
File:Double-alaskan-rainbow.jpg.
Local file: local link: rainbow_alaska.html.
File: Electromagnetic Radiation file:
rainbow_alaska.html.