Earth core vs Sun core temperature at the very center of the Sun's core is about 15,000,000°C (27,000,000°F). The core is the hottest part of the Sun, with a temperature of 15 million kelvins (15 million degrees Celsius; 27 million degrees Fahrenheit). The temperature at the core of the Sun is estimated to be around 15,000,000°C (27,000,000°F). #astrophobic #space #universe #astronomy #nasa #spaceexploration #earth #sun #solarsystem #cosmos #temperature #core #earthcore #suncore