In this first image we see the standard 22* halo, the sun dogs, and the nearly horizontal line at the top of the halo is actually part of an oval shaped halo called a circumscribed halo;
In this image with an unblocked sun we can see the internal reaches of the Parhelic Circle, which stretches in a great circle from each side of the sun and all the way around the sky;
In this composite image I've assembled several images of the 120* Parhelic Circle to show it in it's entirety. The 120* designation comes from the additional set of sundogs located on the circle 120* away from the sun. In the composite they appear to lay at 90*, but the layout is greatly distorted partly due to the fact that I was working with very wide angle cell phone images, and partly due to the fact that I wouldn't have a clue how to get it perfect even if I had normal aspect ratio images. Regardless, I think you get the picture;
Seeing this stuff just made my day!
I've got a video that I took and will post it as soon as I make a YouTube account.More information about the phenomena seen in these images;
https://en.wikipedia.org/wiki/Circumscribed_halo
https://en.wikipedia.org/wiki/Parhelic_circle
https://en.wikipedia.org/wiki/120%C2%B0_parhelion
