Sundogs (also called mock suns) are a phenomena we see several times a winter. They are caused by light refracting through ice crystals and are usually in very cold weather, or in not-so cold weather but where there's lots of ice crystals in the air - you know, the kind that turn the trees white. Although the twin mock suns on either side are the actual sundogs, the whole thing is commonly called a sundog in these parts much like a ring around the moon is called a moondog.
Usually a sundog is close to the horizon, like in the photo I showed yesterday or in some of my previous sunrise pics. However last year, I took several photos of one at noon on our way back from church. I wouldn't even have noticed it except for the bright light at ground level which peaked my curiosity so I followed it upwards.
|Taken Feb 7, 2010|
What made this sundog special was that it had twin sundogs on each side. In other words, it had a double ring around it. So in my posts, I've referred to it as a double sundog:
|Double ring Sundog Feb 7, 2010|
For more of my sundog photos, check the LABELS on the right side of this blog.
I've even turned some of my sundog photos into jigsaw puzzles.
Next time it's a cold morning, see if you can see a sundog.
Thanks for asking, Josi. :)