posted on Mar, 14 2012 @ 08:18 PM
As others have pointed out, this is not a "rainbow cloud" or "circumhorizon arc".
The sun has to be higher
than 58° above the horizon for a circumhorizon arc to be visible, and it is obvious from the footage that the sun
was relatively low in the sky at the time.
Latitude is the key. The sun must be higher than 58° to form the arc.
A circumhorizon arc would also be below
the sun, where as what we are seeing in the footage is next to, and apparently more or less level with
the sun. That suggests "parhelia" or sundogs.
Having observed and photographed sundogs on dozens of occasions, I would have to say that they look like sundogs to me.
One thing you can do if you see a patch of high-lit cloud to check if it is a sundog, is to stretch out your arm and whilst spreading out your thumb
and fingers as far as they will go, cover the sun with your thumb/little finger, and use the finger/thumb at the other end to gauge the distance to
your suspected sundog.
If your hand's span more or less reaches, then you are probably looking at a 22° sundog (the most common type). The same trick can also be used to
identify the 22° halo that sometimes surrounds the sun, and often accompanies sundogs.