Determining Star Temperatures
Name: Chantal B.
Date: 1999 - 2000
How does the Wien law permit astronomers to determine
the tempeture of various star?
There are actually three radiation laws attributed to Wien. The first, and
probably the one that easiest to apply to the temperature of stars, states:
Lmax * T = const. = 0.2896.
That is, the product of the wavelength of maximum emission intensity, Lmax,
and the absolute temperature, T is a constant. So by measuring the
wavelength of maximum intensity, an estimate of the temperature of the star
can be made.
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Update: June 2012