Mathematics, 09.04.2021 03:00 spookymod4845

The distance of the red supergiant Betelgeuse is approximately 643 light-years. If it were to explode as a supernova, it would be one of the brightest stars in the sky. Right now, the brightest star other than the Sun is Sirius, with a luminosity of 26LSun and a distance of 8.6 light-years. How much brighter than Sirius would the Betelgeuse supernova be in our sky if it reached a maximum luminosity of 1x 10^10 LSun?
Express your answer using three significant figures. Apparent brightness of Betelgeuse Apparent brightness of Sirius

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The distance of the red supergiant Betelgeuse is approximately 643 light-years. If it were to explod...