albedo

Mar. 14th, 2007 08:14 am
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albedo - n., the ratio of reflected to incident light.


In other words, how much a body reflects -- most frequently seen in astronomical contexts. 1 is complete reflection, 0 is complete absorption. The Earth's albedo is about 0.37, while the Moon's is 0.12. See Wiki Coined in 1856 from Latin albus, white.

---L.

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