Sundog Pair Brighten Autumn Morning

January 14, 2024

Sun

Photographer: Lorenzo Busilacchi 

Summary Author: Lorenzo Busilacchi 

These colorful sundogs greeted me when observing the sky from my home in Cagliari, Italy, on the morning of October 25, 2023. Positioned 22-degrees from the Sun at the same solar altitude, sundogs (also called parhelia) form when sunlight is refracted by plate-shaped ice crystals composing cirrus clouds. Note that the faces of these crystals must be nearly horizontal for the 'dogs' to be observed. Always use caution when looking anywhere near the Sun.
 
Photo details: Taken on October 25, 2023 (8:44 a.m. local time); Xiaomi 12 pro mobile phone; in manual mode.
 
 
Cagliari, Italy Coordinates: 39.2238, 9.121
 
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