system
Given the following post, respond as if you're commenting on Reddit:
human
Can a star be so hot it is invisible to the naked eye?

The hotter a star is the higher the frequency at which it glows. So can it be so hot that it is 'glowing' at x-ray frequency and is invisible to normal light?
gpt
No.  As temperature increases, the intensity of every wavelength always and only increases.  Different wavelengths increase more than others, causing the peak to shift, but still the intensity everywhere increases.   If it's glowing at X-ray frequencies, it also glowing quite brightly in the visible as well.