Combination of 2, 3 minute exposures, Meade 416XT CCD.
300mm f/6 newtonian at prime focus.
Henize 2-145 is a fairly small and faint planetary nebula in Norma, about 4 degrees north of the open cluster NGC 6067. It was not a difficult object with a 12" telescope, although an OIII filter helped in identifying it. It a 17.5" telescope, it appeared as a small circular patch of light.