Sol is a relatively young yellow star orbited by 8 planets, several dwarf planets and an asteroid belt. Sol's most prominent planet is Earth where alien refugees commonly seek asylum. The yellow sun is capable of giving both Kryptonians and Daxamites alike superhuman abilities.
After the Legends successfully killed Vandal Savage in each time period, a third meteor was still set to go off, causing the world to be destroyed. Rip Hunter planned to sacrifice himself by flying the meteor into Sol, destroying it alongside the Waverider. He flew it toward the Sol and passed out before waking up and finding the meteor destroyed. The Waverider then had one last time jump, which Rip used to return to 2021 and get the rest of the team.
Since both Earth and Mars orbit Sol, M'gann M'orzz was dispatched to Earth when a Sun-Eater escaped the Fortress of Solitude through the plotting of Lex Luthor. Supergirl, wearing a Lexosuit, J'onn J'onzz, and M'gann were able to stop the Sun-Eater before Sol could be devoured . Meanwhile, Lex looked towards the sun in order to time how long it would take for the heroes to return to Earth, allowing him to concoct his plans undisturbed.