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can we see the moon from all points on the earth?

Posted on 2012-04-03
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Last Modified: 2012-04-03
Hello

I am looking into phases of the moon as in this diagram.moon
I know this diagram is obviously not to scale(!!) but it suggests that when I am on the side of the Earth that is in shadow I wouldn't be able to see Moon 2 (the waxing crescent moon) for example.

Am i right in saying that when the moon as at a particular position in its orbit (e.g. Moon 2) then all points of the Earth see the crescent moon at night time? It is easy to think that the reflected light you see from the moon depends on your position on the Earth at the time. Can you recommend a good image showing how the light reflected from the moon looks the same at all points on Earth to help with visualiation of this

thanks
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Question by:andieje
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wasiftoor earned 2000 total points
ID: 37803814
The following animation should be helpful for such a visualization. Notice the position of the small man on the globe to signify the observers position.

http://astro.unl.edu/naap/lps/animations/lps.swf


Hope this helps!
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by:andieje
ID: 37803821
thank-you - that is brilliant
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