Dirpion-104

Dirpion-104 is a neutron star at the centre of the Dirpion Nebula, whose material originated from the star when it went hypernova. Originally one of the largest long-lasting stars known to all, it is unknown why Dirpion-104 went hypernova, as its size actually warranted it for a supernova. Some astronomers claim that it was Dirpion's ridiculous instability that caused it to go hypernova.

Interference from the Achrisians
The Achrisians of the planet Achris quickly became aware that their home star was unstable. Because they developed advanced technology at an awesome rate, they managed to create a tool to stabilise their star before it became too unstable: the Star Ring. It elongated the star's lifespan and allowed the Achrisians to develop further. However, an attack from the Estin disrupted the thruster system, causing the ring to slow down and eventually stop revolving.