Combination of 2, 3 minute images, Meade 416XTE CCD.
300mm f/6 newtonian at prime focus.
Koh 1-1, also known as PK 252 +4.1, is a moderately large but faint planetary nebula in Pyxis. The magnitude is quoted as 15.6 but the light is spread out over an area more than 40" across. It was not visible in a 12" telescope, and is only weakly recorded in this image as a nebulus patch just right of centre, indicated by the lines.