The radius of the star is 10 times less than the radius of the Sun, and its surface temperature is 3300 K. Determine the luminosity

The radius of the star is 10 times less than the radius of the Sun, and its surface temperature is 3300 K. Determine the luminosity of this star (in units of the luminosity of the Sun). What spectral class does it belong to? What type of star is this star?

0.001 luminosity of the Sun; spectral class M; belongs to the main sequence stars (red dwarf).

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