Celestial hemisphere:  Northern  ·  Constellation: Delphinus (Del)

Image of the day 09/06/2020

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    Abell 72 (PK 59 -18.1) Planetary Nebula in Delphinus, 



    
        

            Douglas J Struble
    Abell 72 (PK 59 -18.1) Planetary Nebula in Delphinus
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    Abell 72 (PK 59 -18.1) Planetary Nebula in Delphinus

    Image of the day 09/06/2020

    Getting plate-solving status, please wait...
      Abell 72 (PK 59 -18.1) Planetary Nebula in Delphinus, 



    
        

            Douglas J Struble
      Abell 72 (PK 59 -18.1) Planetary Nebula in Delphinus
      Powered byPixInsight

      Abell 72 (PK 59 -18.1) Planetary Nebula in Delphinus

      Acquisition details

      Dates:
      Aug. 17, 2020 ·  Aug. 22, 2020 ·  Aug. 23, 2020
      Frames:
      Astrodon OIII 3nm: 506×120(16h 52′) (gain: 200.00) -20°C bin 1×1
      Astronomik Deep-Sky B: 31×60(31′) (gain: 0.00) -20°C bin 1×1
      Astronomik Deep-Sky G: 30×60(30′) (gain: 0.00) -20°C bin 1×1
      Astronomik Deep-Sky R: 43×60(43′) (gain: 0.00) -20°C
      Integration:
      18h 36′
      Darks:
      50
      Flats:
      50
      Bias:
      250
      Avg. Moon age:
      12.18 days
      Avg. Moon phase:
      14.75%
      Bortle Dark-Sky Scale:
      8.00

      Basic astrometry details

      Astrometry.net job: 3799228

      RA center: 20h50m01s.9

      DEC center: +13°3339

      Pixel scale: 0.681 arcsec/pixel

      Orientation: 281.869 degrees

      Field radius: 0.155 degrees

      Resolution: 1282x1028

      File size: 709.6 KB

      Locations: Backyard White Zone Observatory, Taylor, MI, Michigan, United States

      Data source: Backyard

      Description

      This was a major challenge for me at 0.68"/pixel with my ES 165 at only 2 arc minutes. My inspiration for this was shot with a 80cm f/7 AstroOptik Keller corrected cassegrain in Chili:

      http://www.chart32.de/component/k2/planetaty/abell-72-pk-59-18-1-planetary-nebula-in-delphinus

      This faint planetary nebula, Abell 72 (PK 059+18.1) in the constellation Delphinus, is an expanding glowing shell of ionized gas ejected from an old red giant star. The beautiful object of George O. Abell's Catalog of Planetary Nebula is 5'700 ± 1150 light years from earth and about 2 light years across.

      Comments

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        Abell 72 (PK 59 -18.1) Planetary Nebula in Delphinus, 



    
        

            Douglas J Struble
        Original
        Abell 72 (PK 59 -18.1) Planetary Nebula in Delphinus, 



    
        

            Douglas J Struble
        B

      B

      Description: Featured in Astronomy Magazine February 2021.

      Uploaded: ...

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      Abell 72 (PK 59 -18.1) Planetary Nebula in Delphinus, 



    
        

            Douglas J Struble