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Catalogue and alternative designations GGD 27
Type Reflection nebula 
Position  18 02 25, -22 59 00
Constellation Sagittarius
Camera and Telescope STXL6303 and 36.8cm Ritchey Chretien
Focal Ratio F9
Exposure Details LRGB with special purpose Astrodon infrared filters. L is "infrared luminance" which excludes anything less than 700nm.  Red is assigned to a band peaking at about 850nm, Green peaking at about 830nm and Blue at 750nm.  Exposure times were L = 200 minutes (unbinned) and R = G = 100 minutes, B=130 minutes (binned 2x2)
Description GGD 27 is a complex star forming region about 5,500 light years away in Sagittarius that has been much studied. The central part of the nebula is dominated by a massive protostar now designated GGD 27-ILL.