Sh 2-306

Sh 2-306, is an emission nebula and H [II region] located in the southern constellation Puppis. It is catalogued in the Sharpless catalog and forms part of a large star-forming complex within the Perseus Arm of the Milky Way. It is located close to Sh 2-309.
Three stars are responsible for the ionization of the nebula LSS 458 )z), LSS 499 and LSS 467. These stars are embedded within a giant molecular cloud complex sometimes referred to as JKK96 D. Sh 2-306 is situated near the center of the GS234-02 supershell, a vast infrared-emitting ring structure spanning several degrees, believed to be the result of multiple supernova explosions and stellar winds from previous generations of massive stars.