Planetary nebula Abell 39
Published 25 May 2021

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Full image field here: Un-cropped full resolution

About this object

Abell 39 is a low surface brightness planetary nebula in the constellation Hercules. Abell 39 is magnitude 13.7 with the central star at magnitude 15.5. It lies at a distance of 6,800 light years and has a diameter of 2.5 light years. Abell 39 goes by the designations PN A66 39, PN ARO 180, PK 047+42.1 and PN G047.0+42.4. The planetary nebula is nearly symmetrical and was George Abell's 39th entry into his catalog of planetary nebula.. Within the field are many faint galaxies. I included an annotated image which names a few but there are lots and lots of them un-catalogued.

The image was taken from my backyard observatory with a Stellarvue SVX 152T refractor and ZWO ASI 6200 camera at 1x1 binning at 1/2 frame and a resolution of .64 arcsec/pixel. The image was processed in PixInsight.
Image Details

  • Optics : Stellarvue SVX 152T refractor @f8 1200mm FL
  • Mount: Paramount MYT
  • Camera: ZWO ASI6200
  • Filters: Chroma 50mm RGBOIII Astrodon Ha
  • Exposure (min): RGB 160:160:145:760:700 32.1 hrs, 1x1 binning 1/2 frame
  • Automation Control: The Sky X, Voyager, PrimaluceLab Eagle 4
  • Guiding: StarlightXpress Lodestar X2
  • Processing Software: PixInsight
  • Location: Stark Bayou Observatory, Ocean Springs, MS
  • Sky: Typical SQM 19.6-20.1, Bortle 5, Suburban
  • Date: 3 Apr - 21 May 2021
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