Sledge hammers rule.
Astrometry.net gives me the image centre and dimensions.
From that Unimap tells me the object is at
12:50:22.636 -61:35:00.64 (the coords for the star in the middle - TYC8988-717-1)
From that Vizier tells me that the nebulosity is BBW 397 or RCW 71 (aka Gum 4) in the "Catalog of Star-Forming Regions in the Galaxy (Avedisova, 2002)"
Aladin image