by James Perdue (Photography)
in the remote Centennial Valley Red Rock Lakes Wildlife Refuge. Image
©James Perdue, shown with permission.
The ghostly fogbow is produced by
small mist droplets compared to
the large raindops that make its the colourful
rainbow counterpart. The shadow of the photographer's
head marks the bow centre at the antisolar point directly opposite
the sun. Just inside the bow is a characteristic dark
band and then a faint and
broad supernumerary. Like a
rainbow, the area inside the bow is
bright with refracted and reflected light. Outside the bow to the right
there is a fragment of very faint secondary fogbow.