Hengguang City

In the year 2322 of the Shuiyao Star Era, the sun gradually entered a period of decline after experiencing its heyday. The solar energy was extremely attenuated. People updated and created Hengguang City based on the original urban system. One summer night with a clear sky, a comet with a radius of 100 kilometers from the M22 Centauri star cluster suddenly broke into the Milky Way, causing orbital disturbances. Some nebula fragments in the galaxy deorbited and disintegrated. The energy fragments of the nebula burst into the solar system and hit the sun, resulting in stellar medium fusion. Large-scale flares and solar activities broke out. The surface temperature of the sun increased by 1000°C, and the luminosity increased by 3.827×10^24 Watts. The fragments of extrasolar energy stars carrying high-density hydrogen energy materials cause the acceleration of the solar nuclear fusion effect, changes in the mass and gravity of the sun, and trigger a series of astrophysical chain reactions.