# Unlocking the Brightness of Celestial Bodies

## How many times brighter is Rigel than the sun?

Rigel has an absolute magnitude of -8.10 and the sun has an absolute magnitude of 4.77. How can we quantify the brightness difference between these two stellar giants?

## Calculating the Brightness

To determine how many times brighter Rigel is than the sun, we must compare their absolute magnitudes. The formula for comparing brightness based on magnitude difference is 2.512 raised to the power of the difference in magnitudes.

When we subtract the absolute magnitude of Rigel from that of the sun, we get:-8.10 - 4.77 = -12.87. This negative value indicates that Rigel is significantly brighter than the sun.

Using the formula 2.512^-12.87, we find that Rigel is approximately 1.87 million times brighter than the sun. This staggering difference showcases the immense luminosity of Rigel compared to our solar powerhouse.

By delving into the numerical relationship between celestial bodies, we gain a deeper understanding of their brilliance and the astronomical wonders that fill our universe.