The star at the center of our Solar System is the Sun. The surface temperature of the Sun is 5,800º Kelvin (10,000º F), while the temperature at its center is 15,000,000º Kelvin (over 2,585x that of the surface). The Sun’s diameter is 865,000 miles (1,392,000 km), which is about 109x that of Earth and its rotational time is 25.4 days.
What type of star is our Sun?
Our Sun is a yellow dwarf star, which is a ball of hot glowing gases. The spectral type of our Sun is G2V.