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

    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

      Technical card

      Imaging telescopes or lenses: Explore Scientific ED165CF FPL-53

      Imaging cameras: ZWO ASI1600MM-PRO

      Mounts: Astro-Physics Mach 1 GTO

      Guiding telescopes or lenses: Orion 80mm Short Tube

      Guiding cameras: Starlight Xpress Lodestar x2

      Software: Adobe Photoshop CS5.5  ·  PHD2  ·  Sequence Generator Pro  ·  PixInsight  ·  SkySafari Pro

      Filters: Astronomik Deep-Sky B  ·  Astronomik Deep-Sky G  ·  Astronomik Deep-Sky R  ·  Astrodon OIII 3nm

      Accessory: ZWO 8x 1.25" Filter Wheel (EFW)  ·  QHYCCD PoleMaster  ·  Hotech 2" SCA Self-Centering Field Flattener  ·  MoonLite CFL 2.5" Large Format Focuser


      Dates:Aug. 17, 2020Aug. 22, 2020Aug. 23, 2020

      Frames:
      Astrodon OIII 3nm: 506x120" (16h 52') (gain: 200.00) -20C bin 1x1
      Astronomik Deep-Sky B: 31x60" (31') (gain: 0.00) -20C bin 1x1
      Astronomik Deep-Sky G: 30x60" (30') (gain: 0.00) -20C bin 1x1
      Astronomik Deep-Sky R: 43x60" (43') (gain: 0.00) -20C

      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: 4568392


      Resolution: 4032x3024

      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: ...

      Histogram

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



    
        

            Douglas J Struble