geometric albedo


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geometric albedo

[¦jē·ə¦me·trik al′bē·dō]
(optics)
The ratio of the light flux received from an object to that which would be received from a perfectly reflecting, perfectly diffusing disk of the same size at the same distance at zero phase angle.
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A geometric albedo of 0.142 [+ or -] 0.005 is also reported.
2000), the author has computed geometric albedos of 0.16 [+ or -] 0.03 and 0.24 [+ or -] 0.05 for Mercury based on the procedure in Mallama et al.
"They were one of three research teams who found the cometary material to have a geometric albedo of about six percent.
The selected geometric albedo is 0.18 [+ or -] 0.01 for the Johnson R and I system.
Lane and Irvine (5) also review geometric albedo measurements of the Moon.
The same procedure in Mallama and Schmude (15) is used in computing the geometric albedos. Magnitudes and color indexes of the Sun are from Livingston (18) and the lunar diameter, 3,474.8 km, is from (19).