Difference between revisions of "Albedo"
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Albedo is not expressed in any units but on a scale from 0 to 1. A pure white object would be 1 while completely black object (e.g. [[black hole]]) would have a value of zero. It is an important concept in climate change discussions where the albedo of the earth affects the amount of light and heat reflected back in to space. | Albedo is not expressed in any units but on a scale from 0 to 1. A pure white object would be 1 while completely black object (e.g. [[black hole]]) would have a value of zero. It is an important concept in climate change discussions where the albedo of the earth affects the amount of light and heat reflected back in to space. | ||
| − | The moon has an | + | The moon has an albedo of 0.39. |
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| + | [[Category:Astronomy]] | ||
Revision as of 03:57, June 30, 2007
Albedo is the reflection coefficent of an object to electromagnetic radiation (usually visible light). The word comes from albus, Latin for white.
Albedo is not expressed in any units but on a scale from 0 to 1. A pure white object would be 1 while completely black object (e.g. black hole) would have a value of zero. It is an important concept in climate change discussions where the albedo of the earth affects the amount of light and heat reflected back in to space.
The moon has an albedo of 0.39.