Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  The star Alderamin (αCep)  ·  The star ηCep

Image of the day 10/11/2021

Getting plate-solving status, please wait...
    The Squid and the Flying Bat Nebulae | Ou4 and Sh2-129, 



    
        

            Kiko Fairbairn
    The Squid and the Flying Bat Nebulae | Ou4 and Sh2-129
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    The Squid and the Flying Bat Nebulae | Ou4 and Sh2-129

    Image of the day 10/11/2021

    Getting plate-solving status, please wait...
      The Squid and the Flying Bat Nebulae | Ou4 and Sh2-129, 



    
        

            Kiko Fairbairn
      The Squid and the Flying Bat Nebulae | Ou4 and Sh2-129
      Powered byPixInsight

      The Squid and the Flying Bat Nebulae | Ou4 and Sh2-129

      Technical card

      Imaging telescopes or lenses: Takahashi FSQ-106EDXIII TAK FSQ 106

      Imaging cameras: FLI PL 16803

      Mounts: Astro-Physics Inc Astro-Physics Mach1AP GTO with GTOCP3

      Software: Lightroom  ·  PixInsight  ·  Astro Pixel Processor APP


      Basic astrometry details

      Astrometry.net job: 5069830

      RA center: 21h10m58s.3

      DEC center: +60°0610

      Pixel scale: 6.807 arcsec/pixel

      Orientation: 99.599 degrees

      Field radius: 3.907 degrees


      Resolution: 2850x2992

      Locations: Rio Hurtado valley, Chile, Rio Hurtado valley, Chile

      Data source: Amateur hosting facility

      Description

      This image has been extremely challenging. The adjustments for all seven (Ha, OIII, SII, R,G,B and synthetic L) channels were time consuming.

      Wonderful to take the time to process each one of them, but difficult to assemble all of them in a cohesive way.

      Since the total exposure time is humongous, that has been my deepest astrophoto so far. I´ m happy for finishing this project. Hope you like it! 

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      ´  A very faint but very large squid-like nebula is visible -- but inside a still larger bat. The Giant Squid Nebula cataloged as Ou4, and Sh2-129 also known as the Flying Bat Nebula, are both caught in this cosmic scene toward the royal royal constellation Cepheus.

      Discovered in 2011 by French astro-imager Nicolas Outters, the Squid Nebula's alluring bipolar shape is distinguished here by the telltale blue-green emission from doubly ionized oxygen atoms. Though apparently completely surrounded by the reddish hydrogen emission region Sh2-129, the true distance and nature of the Squid Nebula have been difficult to determine. Still, a more recent investigation suggests Ou4 really does lie within Sh2-129 some 2,300 light-years away. Consistent with that scenario, Ou4 would represent a spectacular outflow driven by HR8119, a triple system of hot, massive stars seen near the center of the nebula. The truly giant Squid Nebula would physically be nearly 50 light-years across.´   [ APOD ]

      - -

      Channels:

      .Ha: 10x1200”
      .OIII: 110x1200”
      .SII: 30x1200”
      .R: 8x600”
      .G: 8x600”
      .B: 8x600”

      Comments

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      The Squid and the Flying Bat Nebulae | Ou4 and Sh2-129, 



    
        

            Kiko Fairbairn