PK 110-12.1 (Kohoutek 1-20) Planetary Nebula in Andromeda

Located at: RA 23 hours 39 minutes 11 seconds, Dec +48 degrees 12 minutes 30 seconds

Size: 36" Magnitude: 16.5 photographic Class: 4

North is up

West to the right


 14.5" f5 Newtonian reflector


  ST-8XME, self-guided, binned 1x1, temp -15c, camera control MaxIm DL 4.56


Lumicon Red filter, 920 minutes (92 x 10 minute subs), 09/27/28/29/30/2017; seeing 3.0-4.7 FWHM per CCDStack

Processing: CCDStack 2.94.6355.18107, Photoshop CS5.1

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

Notes: I might not have started this object if I had looked at all online images! It seems this is one of those 'bluish' planetaries ... not well suited to a red filter and a brightening moon in the south. However, I took enough subs for a decent image, even though the seeing was never that good.

View 200% crop.

See the CDS image/data.