PK 129+4.1 (Kohoutek 3-91) Planetary Nebula in Cassiopeia

Located at: RA 01 hours 58 minutes 36 seconds, Dec +66 degrees 33 minutes 58 seconds

Size: 18" Magnitude: 20.9 photographic Class: --

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, 610 minutes (61 x 10 minute subs), 10/12/13/14/2016; seeing 2.4-4.0 FWHM per CCDStack


CCDStack 2.93.6093.26774, Photoshop CS5.1


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

Notes: I wanted to get one more night on this planetary, but with fronts rolling through SoCal (no rain here) last night and tonight, I decided to process what I had. Shot around full moon, this was as far north/northeast as I could get from the moon.

View 200% crop.

See the CDS image/data.