What is the estimated temperature at the core of the sun?

The estimated temperature at the core of the sun is approximately 15 million degrees Celsius. This extreme heat is a result of the nuclear fusion processes that occur in the sun's core. During these processes, hydrogen nuclei fuse to form helium, releasing a tremendous amount of energy in the form of heat and light.

This temperature is crucial for sustaining the fusion reactions that power the sun, providing the energy that ultimately reaches Earth and supports life. The core's temperature is much higher than those of the outer layers of the sun, such as the photosphere and chromosphere, where temperatures are significantly lower. Understanding the core's temperature helps us grasp the fundamental processes that govern stellar activity and the lifecycle of stars.