Hemisphere:  Northern  ·  Constellation: Serpens (Ser)

Image of the day 09/28/2020

Getting plate-solving status, please wait...
    Sh2-68 • Flaming Skull Planetary Nebula, 



    
        

            Douglas J Struble
    Sh2-68 • Flaming Skull Planetary Nebula
    Powered byPixInsight

    Sh2-68 • Flaming Skull Planetary Nebula

    Image of the day 09/28/2020

    Getting plate-solving status, please wait...
      Sh2-68 • Flaming Skull Planetary Nebula, 



    
        

            Douglas J Struble
      Sh2-68 • Flaming Skull Planetary Nebula
      Powered byPixInsight

      Sh2-68 • Flaming Skull Planetary Nebula

      Equipment

      Imaging Telescopes Or Lenses
      Stellarvue SVX102T-R
      Imaging Cameras
      ZWO ASI1600MM-Cool
      Mounts
      Orion Atlas Pro AZ/EQ-G
      Filters
      Astrodon Ha 5nm · Astronomik Deep-Sky B · Astronomik Deep-Sky G · Astronomik Deep-Sky R · Astrodon OIII 3nm
      Accessories
      ZWO 8x 1.25" Filter Wheel (EFW) · QHYCCD PoleMaster · Hotech 2" SCA Self-Centering Field Flattener · MoonLite CFL 2.5" Large Format Focuser
      Software
      Adobe Photoshop CS5.5 · PHD2 · Sequence Generator Pro · PixInsight · SkySafari Pro
      Guiding Telescopes Or Lenses
      Stellarvue 50mm Guidescope
      Guiding Cameras
      ZWO ASI224MC

      Acquisition details

      Dates:
      Aug. 16, 2020 ·  Aug. 27, 2020 ·  Sept. 5, 2020
      Frames:
      Astrodon Ha 5nm: 700x120" (23h 20') (gain: 200.00) -20°C bin 1x1
      Astrodon OIII 3nm: 347x120" (11h 34') (gain: 200.00) -20°C
      Astronomik Deep-Sky B: 30x60" (30') (gain: 0.00) -20°C bin 1x1
      Astronomik Deep-Sky G: 30x60" (30') (gain: 0.00) -20°C
      Astronomik Deep-Sky R: 28x60" (28') (gain: 0.00) -20°C bin 1x1
      Integration:
      36h 22'
      Darks:
      50
      Flats:
      50
      Bias:
      250
      Avg. Moon age:
      17.89 days
      Avg. Moon phase:
      55.89%
      Bortle Dark-Sky Scale:
      8.00

      Basic astrometry details

      Astrometry.net job: 3866025

      RA center: 18h25m06s.2

      DEC center: +00°5700

      Pixel scale: 1.105 arcsec/pixel

      Orientation: 282.530 degrees

      Field radius: 0.289 degrees

      Resolution: 1471x1177

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

      Data source: Backyard

      Description

      The Sh2-68's very irregular shape is due to its interaction with the surrounding interstellar medium. The white dwarf is moving rapidly through space and happens to be in a location in our Milky Way galaxy where there is more gas and dust between stars than usual. So as it moves, the gas it blows off is itself blown back, making it look like a giant screaming head with flaming hair, streaking across the Galaxy. The interaction with the interstellar medium also impedes and finally stops the expansion of the nebula.The star itself is the blue one right in the center of the OIII.

      Sh2-68 is a very ancient planetary nebula estimated to be 45,000 years old. The distance is still yet to be determined. Over the next several thousand years, the Flaming Skull Nebula will gradually disperse into space, and then the white dwarf will cool and fade away for billions of years. Our own Sun is expected to undergo a similar fate, but fortunately this will not occur until some 5 billion years from now.

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      Sh2-68 • Flaming Skull Planetary Nebula, 



    
        

            Douglas J Struble

      In these public groups

      Sharpless2 Objects