Spectral radiance of blackbody radiation as a function of wavelength for temperatures ranging from cool (red) to hot (blue).

Description

The dashed locus line and vertical markers illustrate Wien’s displacement law, showing the characteristic shift of peak emission toward shorter wavelengths as temperature increases. The shaded region highlights the visible spectrum (380–750 nm), emphasizing the alignment of the solar-equivalent curve (5778 K) with this range.

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