Sat March 10, 2012 By: Ananya Shrivastava

why the sun appears flat and oval during sunrise or sunset and why does it appear circular at the time of noon?

Expert Reply
Sat March 10, 2012
At sunrise and sunset, the sun is near the horizon. The rays of light from the upper part and lower part of the periphery of the sun bend unequally on travelling through earth's atmosphere. That is why the sun appears oval or flattened at the time of sunrise and sunset.
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