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Name: Robert W.
Status: student
Age: 50s
Location: N/A
Country: N/A
Date: 1/13/2003


Question:
Can the temperature of clouds on Neptune be measured using Wien's Law? As an example, if the maximum wavelength of emission from Neptune's clouds is 6.0 x 10 Exp-5 would the Temperature be 48.33K? Or does the blackbody principle requirement of Wien's Law not work in this case?


Replies:
More likely the distribution of frequencies would be fitted to Planck's radiation formula to obtain a more accurate measure of the average temperature. But what one obtains is a temperature averaged over the entire field of view.

Vince Calder



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