Answer :
The spectral type is B, the temperature is 18,000, the absolute magnitude is 0 and the luminosity is 100.
What is luminosity?
The value of luminosity is independent of an observer's distance from an object since it is an absolute measure of radiant power.
Astronomers commonly express an object's brightness in terms of solar luminosities, with one solar luminosity equaling the luminosity of the Sun.
Hence, the spectral type is B, the temperature is 18,000, the absolute magnitude is 0, and the luminosity is 100.
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