Question: Our sun's (5800 mathrm{~K}) surface temperature gives a peak wavelength in the middle of the visible spectrum. What is the minimum surface temperature for a

Our sun's $5800 \mathrm{~K}$ surface temperature gives a peak wavelength in the middle of the visible spectrum. What is the minimum surface temperature for a star whose emission peaks at some wavelength less than $400 \mathrm{~nm}$ - that is, in the ultraviolet?

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