More formally known as NGC 6818, this planetary nebula in Sagittarius was dicovered in 1787 by William Herschel. Despite it’s relatively low visual magnitude of 9.3, because it is such a small object it can be photographed with quite short exposures and this image is a stack of 52 5 second frames on the club 20″. I used a Canon 350D at ISO800.
It has two distinct components; a spherical outer shell and a brighter core. Size is a diminutive 25″.
