Striking Corona Observed from Michigan's Upper Peninsula

May 02, 2018

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Photographer: Shawn Malone  
Summary Authors: Shawn Malone; Jim Foster

Shown above is a striking corona around the Sun that I observed from the Upper Peninsula (UP) of Michigan, on the morning of March 12, 2018. Frozen Lake Superior is in the foreground with the Marquette Harbor Lighthouse in the background at center. A corona's colorful concentric rings form when sunlight is diffracted in the minute water droplets that make up mid-level clouds. Like iridescent clouds, the more noticeable corona, having intense coloration, result when the droplet sizes are especially uniform. Of course, always make sure to protect your eyes when looking toward the Sun.