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25 Apr 2008 14:38:31 IST

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why moon appears larger near horizon and smaller when vertical?

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why moon appears larger near horizon and smaller when vertical?

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ERAGON007

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Joined: 1 Mar 2008

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25 Apr 2008 17:29:35 IST

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the moon appears larger /elongated near the equator/horizon as the light get refracted to a greater extent when viewing from near the horizon as the air near the surface of earth is hotter and has a greater refractive index compared to the air at a height above the surface and hence the lidght gets bent more leading to apparent increase in length of the moon this is not seen if we view the moon at a vertical as the light will pass through layers of air at a normal and will hence go unrefracted thhis is why the moon does not look larger..

i hope u have got the answer

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