108/366 | 22-Degree Halo

April 18, 2020  •  Leave a Comment

Yesterday I did a photo walk tour around downtown Baton Rouge. While everything is still shut down from the Wuhan Virus I thought it'd be a good time to visit several key sites and maybe come away with a photo and get ideas for future ones.

I pulled right up to the Old State Capitol and began my stroll. There were a few families enjoying the weather and a couple of sketchy characters that made me a little nervous. I was hyper-vigilant and determined to enjoy the day.

On my way back to the car, since there was different light, I took more snaps of the gothic capitol building. Surrounding it is a tall iron (?) decorative fence accented with fleur de lis and a large eagle on the main gate. When I looked up I noticed a halo around the sun. I have never seen anything like it. I have noticed an increase in sun dogs since last year, but have never seen a large, completely round halo around the sun. Scientists refer to it as a 22-degree halo. Why? The ring has a radius of approximately 22 degrees from its original direction. Halos can also be observed around the moon.

Here is a short description of this optical phenomenon from earthsky.orgHalos around the sun or moon are caused by high, thin cirrus clouds drifting high above your head. Tiny ice crystals in Earth’s atmosphere create the halos. They do it by refracting and reflecting the light.

108/366 | 22-Degree Halo108/366 | 22-Degree Halo22-Degree Halo
24mm | f/8 | ISO 100 | 1/1600 sec


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