Qqaba
From Tardis Wiki, the free Doctor Who reference
Qqaba was the star that Omega and Rassilon detonated with the Hand of Omega to create the black hole to enable time travel for their species. (COMIC: Star Death, TV: Remembrance of the Daleks) It was located 9.6 light-years from Gallifrey in the constellation of Ao, in the Veil Nebula (PROSE: Lungbarrow), in an area known as the Sector of Forgotten Souls. (AUDIO: Omega)
In one universe, Qqaba was the last of the Population III stars. (PROSE: The Infinity Doctors)
In some accounts, the star is called Pollyana. (The Gallifrey Chronicles (illustrated guide)
