I took this pic and a couple others a long time ago, copied it from my ancient Sony DSC-70 to a disc I recently found in a spindle and dusted it off.
EDIT: It seems it's no longer available for some reason so I'll try again. This message has been edited. Last edited by: dsiets,
January 09, 2025, 12:10 PM
cyberphobia
nice catch!
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May 25, 2025, 02:16 PM
flesheatingvirus
We always called those spots of rainbow glow in the clouds "sun dogs". There's typically always 2 of them on opposite sides of the sun, if you have enough clouds.
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May 25, 2025, 02:34 PM
dsiets
I don't think this is from a "sun dog". I always attributed sun dogs to be when the sun is low on the horizon. This was more mid-day. I am shooting SSW.
These clouds are commonly found in stratus, altocumulus, and cirrocumulus formations—thin, expansive layers containing small water or ice particles. The phenomenon occurs as sunlight scatters off specific-sized droplets or crystals within these clouds.
As sunlight passes through these particles, it refracts and disperses, creating a spectrum of colors. This phenomenon, called diffraction, creates the stunning rainbow effect we see in iridescent clouds. Regular clouds simply reflect sunlight, while iridescent clouds break it down into its component colors, similar to a prism.
The colors and intensity of iridescent clouds depend on factors such as cloud density, altitude, and the observer's position relative to the sun.
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