Betelgeuse, a prominent red supergiant star located in the constellation Orion, has an approximate surface temperature of around 3,500 degrees Celsius (or about 6,332 degrees Fahrenheit). This temperature is relatively cool compared to other stars, particularly those that are classified as blue or white, which can reach temperatures of over 10,000 degrees Celsius.
The cooler temperature of Betelgeuse is a defining characteristic of its red color, which is typical for stars at this stage of their life cycle. As a star evolves and exhausts its nuclear fuel, it expands and cools, transitioning into the red supergiant phase. Betelgeuse is nearing the end of its life, and eventually, it will supernova, an event that will significantly impact its temperature and brightness in the night sky.