double rainbow

    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):

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    Credit/Permission: © Eric Rolph, before or circa 2007 (uploaded to Wikimedia Commons by User:BokicaK, 2007) / Creative Commons CC BY-SA 2.5.
    Image link: Wikimedia Commons: File:Double-alaskan-rainbow.jpg.
    Local file: local link: rainbow_alaska.html.
    File: Electromagnetic Radiation file: rainbow_alaska.html.