PK 64+5.1 (Henize 2-438, Campbell's Hydrogen Star) Planetary Nebula in Cygnus

Located at: RA 19 hours 34 minutes 45 seconds, Dec +30 degrees 31 minutes 01 seconds

Size: 35"* Magnitude: 9.6 photographic Class: 4

North is up

West to the right


 14.5" f5 Newtonian reflector


 ST-8XME, self-guided, binned 1x1, temp -20c, camera control MaxIm DL 4.56


 Lumicon Red filter, 3.983 minutes (99 x 0.0167 minute {1 second} plus 28 x 0.083 minute {5 seconds} subs), 07/6/2015; seeing 1.7-2.6 FWHM per CCDStack


CCDStack 2.90.5589.16047, Photoshop CS5.1


 Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)


I tried to image some high surface brightness planetaries on a rare clear night during monsoon clouds. This, and NGC 6884, were imaged the same evening while rising in the east ...

*Also called "Campbell's Hydrogen Star" ... the listed size of 35 arc seconds seems to refer to the over-exposed POSS / professional images. My very short exposures / short total time presents a smaller object, but has no interior detail that I can bring out. See this information from DeepSkyForum.

View 200% crop.

See the CDS image/data.