|MadSci Network: Physics|
No, the plasma of the sun emits radiation according to blackbody radiation in addition to having spectral absorption lines from its atmosphere. See here for better details on blackbody radiation: http://hyperphysics.phy-astr.gsu.edu/hbase/mod6.html This is why the Sun appears yellow, its peak output wavelength is in the yellow range because of its temperature. This is known as Wein's law, a simple relationship between the temperature and peak output wavelength of a hot object.
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