Hemisphere:  Southern  ·  Constellation: Ophiuchus (Oph)  ·  Contains:  The star 44Oph

Image of the day 06/07/2021

Getting plate-solving status, please wait...
    The Serpent - A Dark Nebula in Ophiuchus, 



    
        

            Matthew Sole
    The Serpent - A Dark Nebula in Ophiuchus
    Powered byPixInsight

    The Serpent - A Dark Nebula in Ophiuchus

    Image of the day 06/07/2021

    Getting plate-solving status, please wait...
      The Serpent - A Dark Nebula in Ophiuchus, 



    
        

            Matthew Sole
      The Serpent - A Dark Nebula in Ophiuchus
      Powered byPixInsight

      The Serpent - A Dark Nebula in Ophiuchus

      Technical card

      Imaging telescopes or lenses: SkyWatcher Esprit 100 ED

      Imaging cameras: ZWO ASI294MM Pro

      Mounts: SkyWatcher EQ6-R Pro

      Guiding telescopes or lenses: SkyWatcher EvoGuide 50ED

      Guiding cameras: ZWO ASI1290MM Mini

      Filters: Astronomik Luminance L-3  ·  Astronomik Deep Sky Green  ·  Astronomik Deep Sky Blue  ·  Astronomik Deep Sky Red


      Frames:
      Astronomik Deep Sky Blue: 81x60" (1h 21') (gain: 120.00) bin 2x2
      Astronomik Deep Sky Green: 82x60" (1h 22') (gain: 120.00) bin 2x2
      Astronomik Deep Sky Red: 86x60" (1h 26') (gain: 120.00) bin 2x2
      Astronomik Luminance L-3: 91x60" (1h 31') (gain: 50.00) bin 1x1

      Integration: 5h 40'


      Basic astrometry details

      Astrometry.net job: 4535147

      RA center: 17h 24' 33"

      DEC center: -23° 46' 22"

      Pixel scale: 1.771 arcsec/pixel

      Orientation: 269.541 degrees

      Field radius: 1.188 degrees


      Resolution: 4000x2702

      Data source: Backyard

      Description

      Winding through space is Barnard 72  - a dense interstellar cloud of dust and gas silhouetted in the shape of a snake by a vast expanse of stars.B72 is a dark nebula in the Ophiuchus constellation where there are a number of similar dark nebulae lurking. The only way to see these types of nebulae is when they obscure the light behind them and stand out in the foreground. With the blue star 44 Ophiuchi shining brightly from the top left, this is one of my favorite scenes I've had the pleasure of capturing so far.

      Comments

      Sky plot

      Sky plot

      Histogram

      The Serpent - A Dark Nebula in Ophiuchus, 



    
        

            Matthew Sole

      In these public groups

      Southern Hemisphere Astro