Y ou could forgive M17 for having an identity crisis. Observers refer to this emission region as the Omega, the Swan, and even the Checkmark Nebula. M17 doesn't even know what constellation to ...

The cloud has a dark nebula which is centered 1° south of the star ρ Ophiuchi. NGC 346: It is a star cluster and nebula located in the Small Magellanic Cloud (SMC). This region is recognized as ...