Hemisphere:  Northern  ·  Contains:  PK059-18.1
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Abell 72, 


            Gary Imm
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Abell 72

Imaging telescopes or lenses: Takahashi TOA-130NFB

Imaging cameras: ZWO ASI 183MM Pro Cool

Mounts: Astro-Physics Mach1GTO

Guiding telescopes or lenses: Orion 60mm Guidescope

Guiding cameras: Orion StarShoot AutoGuider Pro Mono

Software: PixInsight  ·  Main Sequence Software Sequence Generator Pro  ·  Stark Labs PHD2 2.6.3

Filters: Astrodon OIII 31mm 3nm  ·  Astrodon Ha 31mm 5nm  ·  Astrodon Green 31mm Gen2 I-Series  ·  Astrodon Blue 31mm Gen2 I-Series  ·  Astrodon Red 31mm Gen2 I-Series

Accessory: ZWO EFW  ·  Takahashi Flattener TOA-67  ·  Feathertouch Focuser Boss II Electronic Focusing Control

Dates:Nov. 12, 2019Nov. 18, 2019

Astrodon Blue 31mm Gen2 I-Series: 30x120" (gain: 111.00) -15C bin 1x1
Astrodon Green 31mm Gen2 I-Series: 30x120" (gain: 111.00) -15C bin 1x1
Astrodon OIII 31mm 3nm: 60x300" (gain: 111.00) -15C bin 1x1
Astrodon Red 31mm Gen2 I-Series: 30x120" (gain: 111.00) -15C bin 1x1

Integration: 8.0 hours

Avg. Moon age: 17.69 days

Avg. Moon phase: 82.62%

Astrometry.net job: 3074933

RA center: 20h 50' 2"

DEC center: +13° 33' 27"

Pixel scale: 0.494 arcsec/pixel

Orientation: 179.174 degrees

Field radius: 0.201 degrees

Resolution: 2388x1706

Locations: Backyard (Mag 20.8 - New Moon), Onalaska, Texas, United States

Data source: Backyard


This small object, also known as PK 059+18.1, is a planetary nebula located 3700 light years away in the constellation of Delphinus at a declination of +14 degrees. This nebula spans 3 arc-minutes in our apparent view, which corresponds to a diameter of 3 light years.

Very little has been written about this interesting object. I am fascinated by its filamentary structure, which is a very unusual structure for a planetary nebula. Numerous arcing OIII filaments wind throughout the nebula. The signal is predominantly OIII, with very little Ha. The nebula is oblong, indicating a likely bi-polar PN. The bluish central star is clearly visible. Many small foreground stars are superimposed over the nebula, adding to its dramatic look.

Just above the nebula is the white barred spiral galaxy MCG +02-53-005. This galaxy is 200 million light years away, about 50,000 times further away than the nebula. The galaxy diameter is 50,000 light years. On the left side of the image is the faint galaxy 2MASX J20493655+1335042.



Gary Imm
License: None (All rights reserved)

Sky plot

Sky plot


Abell 72, 


            Gary Imm