Dirpion Star Ring

The Dirpion Star Ring was an artificial construct built around the highly unstable supergiant Dirpion-104 by the now-extinct Achrisians. It was designed to stabilise the energy radiated by the star. It was destroyed by Estin 3 billion years ago. This caused the star to become highly unstable, and go hypernova, resulting in the destruction of the Achrisian homeworld of Achris, and most of the Achrisian population.