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A Seemingly Square Sun
<< Yesterday 26.05.1998 Tomorrow >>
A Seemingly Square Sun
Credit & Copyright: T. Polakis
Explanation: Isn't the Sun round? Yes, but in the above picture, the Earth's atmosphere makes it appear almost square. Here a layer of air near the Earth was so warm it acted like a giant lens, creating increasingly distorted paths for sunlight to reach the camera. Similarly, on a long flat highway, it may appear that the road in the distance is covered with water. In this case, light from the blue sky is being unusually refracted by warm air just above the dry road. No matter how the Earth's atmosphere makes the Sun appear, the Sun will always be spherical. This setting Sun was photographed over Lake Michigan in Muskegon, MI.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Russkii tekst
Based on Astronomy Picture Of the Day
Publikacii s klyuchevymi slovami: Sun - Earth's atmosphere - atmosfera Zemli - Refrakciya atmosfernaya - Solnce
Publikacii so slovami: Sun - Earth's atmosphere - atmosfera Zemli - Refrakciya atmosfernaya - Solnce
Sm. takzhe:
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