Pisces Molecular Cloud Complex

The Pisces Molecular Cloud Complex (or, simply, the Pisces MCC) is a vast complex of interstellar clouds in the Pisces Dwarf galaxy, containing HII and HI regions, as well as star-forming regions, spanning around a thousand light-years across. It's likely that a giant interstellar bubble also links the complex members together.

Development notes
The Pisces MCC corresponds to a real-life group of nebulae. The Celestia addon and sources for these nebulae can be found here.