By Charlie at Pasty Central on Friday, December 6, 2002 - 07:58 am:
DR,
This shot was taken from a vantage point looking slightly north of due east. As you can see on this map, the arrow points to where Dan was standing to take it. The rainbow is 180°, that is, opposite the position of the sun. Dan is looking east, not north. The sun is behind us, not to our left as you suggest.
The picture is authentic, a single shot.