Planetary nebula KjPn 8 (PN G112.5-00.1, K3-89) and Bubble Nebula (NGC7635)

 4 Jan, 2021
Planetary nebula KjPn 8 (PN G112.5-00.1, K3-89) and Bubble Nebula (NGC7635)
Objects: Less More
Technical Info
Telescope or Lens: 8" Celestron Schmidt-Cassegrain CPC800 GPS (XLT)
Camera: Starlight Xpress Trius SX694
Mount: equatorial wedge
Guide Scope: Baader 61x250mm
Guide Camera: ASI120MM
Software: MaxIm DL6, PHD2, PixInsight, StarTools, Photoshop CC, Zoner photo studio 14
Accessories: reducer Starizona Night Owl 0.4х, filters Astrodon LRGB E-series gen 2, Astrodon Ha 5nm, Astrodon OIII 3nm
Exposure:
20 x 150" ISO/Gain: 0 - Astrodon R
20 x 150" ISO/Gain: 0 - Astrodon G
20 x 150" ISO/Gain: 0 - Astrodon B
46 x 600" ISO/Gain: 0 - Astrodon Ha 5nm
74 x 600" ISO/Gain: 0 - Astrodon OIII 3nm
Yellow zoneLight Pollution:
 Chervonograd, Ukraine
22 h 30 m
208
Planetary nebula KjPn 8 (PN G112.5-00.1, K3-89) and Bubble Nebula (NGC7635) in the constellation Cassiopeia.
KjPn 8 (PN G112.5-00.1, K3-89) is a bipolar planetary nebula which was discovered by M.A.Kazaryan and Eh.S.Parsamyan in 1971 and independently by Kohoutek in 1972. It is one of the strangest and possibly most unique planetary nebulae in the sky. In my image, we see it on the left side of the frame below the center. Planetary nebula consists of a compact red core (apparent size is about 3–4 arcsec in diameter) surounded by a huge bipolar lobe structure that measures 12x5 arcminutes. There is the possibility that the two separate structures are two separate planetary nebulae formed from both members of a binary star system moving onto the planetary nebula phase within a few thousand years of each other.

This image taken over several nights in November 2020.
R-channel - 20 x 150 sec. bin 1x1;
G-channel - 20 x 150 sec. bin 1x1;
B-channel - 20 x 150 sec. bin 1x1;
Ha- 46 x 600 sec. bin 2x2;
OIII- 74 x 600 sec. bin 2x2.
Total integration time about 22:30 hours.
Resolution: 2711x2185 px
Scale: 5028 KB
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