Pentalla Nebula

In the mirror universe, the Pentalla Nebula was a stellar object, a nebula located in the galaxy's Alpha or Beta Quadrant. In the visible spectrum, the nebula appeared as blue and purple waves. 

History
In the year 2364, the Imperial Starfleet ship attended an off-the-records rendesvouz with Juraav's Orion trading vessel. Captain $𝜇$ traded phasers and phaser rifles from the ship's complement for Juraav's dilithium crystals. Offended by a hidden stash of Bolian brew, Commander $𝜇$ and Lieutenant $𝜇$ allowed Juraav to keep the phasers when the Orion trader retrieved the Bolian brew, and left three Orion slaves behind.

Shortly after, Juraav's ship exploded as it passed the other side of the nebula. 

categroy:alpha and Beta Quadrant nebulae