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Author Topic: How does the moon reflect light?  (Read 1900 times)

Offline Arrual

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How does the moon reflect light?
« on: 01/03/2015 02:51:14 »
So if the moon is basically a rock then how does it reflect light?


 

Offline jccc

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Re: How does the moon reflect light?
« Reply #1 on: 01/03/2015 05:00:41 »
is a rock reflects light?
 

Offline Colin2B

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Re: How does the moon reflect light?
« Reply #2 on: 01/03/2015 08:32:45 »
So if the moon is basically a rock then how does it reflect light?

Jccc gets it almost right and adds a ? for some reason.

All rocks reflect light otherwise we wouldn't be able to see them. The amount of reflection determines how bright the rock appears, black rocks less, light rocks more. Some rocks eg iron pyrites reflect a lot of light and appear shiny.
 

Offline jccc

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Re: How does the moon reflect light?
« Reply #3 on: 01/03/2015 09:27:35 »
the rocks within atoms we cannot see, that's why we know the atom is hard as rock but 99% empty.
 

Offline alancalverd

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Re: How does the moon reflect light?
« Reply #4 on: 01/03/2015 10:28:02 »
Anything reflects more than nothing, and as the moon is surrounded by almost nothing and illuminated by intense light (about a million times brighter than the reflected light, which is a hundred to ten thousand times brighter than the cosmic background) it is clearly visible.

What is remarkable is the dynamic range of the eye, around 100,000,000:1 
 

Offline evan_au

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Re: How does the moon reflect light?
« Reply #5 on: 03/03/2015 11:20:11 »
The reflectiveness of an object is called its "albedo".

The Moon's average albedo is around 0.11, which means that it reflects about 11% of the light that falls on it (a bit less in some areas, a bit more in other areas).

Astronomers are always looking for materials with very low albedo to build their telescopes, as any unwanted reflections inside the telescope makes it harder to see what's really there.
 

The Naked Scientists Forum

Re: How does the moon reflect light?
« Reply #5 on: 03/03/2015 11:20:11 »

 

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