# Find the approximate temperature of a red star that emits light with a wavelength of maximum emission of 700 nm

Find the approximate temperature of a red star that emits light with a wavelength of maximum emission of 700 nm
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Dominique Ferrell
Wien's displacement law states that
$T=\frac{\left(2.9×{10}^{-3}\right)}{{\lambda }_{maximum}}$
where T is the temperature of the object,${\lambda }_{maximum}$ is the wavelength of emitted radiation of maximum intensity.
Given
Wavelength of maximum intensity radiation of the red star is
Henceforth the temperature can be calculated as