Tenglong Nebula, also known as the Double Star Graveyard.
According to technical support intelligence provided by the Empire's Intelligence Bureau from the Royal Academy of Sciences, there once existed a complete twin star system composed of two large main sequence stars.
The masses of these two main sequence stars were thirty-seven times and sixty-six times that of the Source Sun, with volumes six billion times and thirty million times that of the Source Sun respectively.
A billion years ago, these two stars in their prime suddenly exploded. The energy released during their explosion even surpassed that of a supernova explosion. Additionally, astrophysicists at the Royal Academy of Sciences believe that the explosion of this twin star system is unrelated to the black hole above, and there are no traces of any large celestial bodies passing through here. The reason for the explosion is quite mysterious, and can only be speculated to be influenced by some kind of cosmic ray burst.
