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Moon appears larger when closer to the horizon


Image: Moon rise through Downtown San Diego buildings. Craig Carter, @SeeMyPhotos

Like the sun, the moon rises and sets in the sky at predictable times. When the moon is close to the horizon during moon rise or moon set, it appears to be much larger than when it is above us. 

Is the moon larger at certain times of the day? How can we determine if the moon is a different size depending on its position in the sky?


National Geographic, Why the moon looks bigger near the horizon?

Discover Magazine, Why does the moon look so huge on the horizon?

NGSS & Grade

1-ESS1-1, ESS1.A: The Universe and its Stars

5-ESS1-2, ESS1.A: The Universe and Its Stars

MS-ESS1-1, ESS1.A: The Universe and Its Stars

3-5 ELM
6-8 MS
Earth and Space Science