How does the temperature of betelgeuse compared to the temperature of rigel?

Betelgeuse, a red supergiant star, has an effective surface temperature of around 3,500 Kelvin, while Rigel, a blue supergiant, has a much higher surface temperature of about 11,000 Kelvin. This significant difference in temperature is due to their stages in stellar evolution and their respective spectral classifications, with Betelgeuse being cooler and redder, and Rigel being hotter and bluer. Consequently, Rigel emits more energy than Betelgeuse, influencing their brightness and appearance in the night sky.