The core of the Sun, or the center of the Sun, is 27,000,000 degrees Fahrenheit. Compare this to the temperature on a hot summer day, about 90 degrees Fahrenheit. The surface of the Sun is cooler than the core of the Sun. Its temperature is 10,000 degrees Fahrenheit.
Sunlight travels at the speed of light.
The speed of light doesn't change. The speed of light is 186,282 miles per second or 299,792,458 meters per second. This means the light from the Sun takes eight minutes to travel to Earth. It travels a very long distance in eight minutes because it travels so fast. A process called fusion heats the Sun.