Hemisphere:  Northern  ·  Constellation: Taurus (Tau)

Image of the day 01/26/2018

Getting plate-solving status, please wait...
    Simeis 147 (Sharpless 2-240) Small section., 



    
        

            Mike Oates
    Simeis 147 (Sharpless 2-240) Small section.
    Powered byPixInsight

    Simeis 147 (Sharpless 2-240) Small section.

    Image of the day 01/26/2018

    Getting plate-solving status, please wait...
      Simeis 147 (Sharpless 2-240) Small section., 



    
        

            Mike Oates
      Simeis 147 (Sharpless 2-240) Small section.
      Powered byPixInsight

      Simeis 147 (Sharpless 2-240) Small section.

      Acquisition details

      Dates:
      Dec. 17, 2017
      Frames:
      Astrodon 3nm OIII: 19×1800(9h 30′) bin 1×1
      Astrodon 3nm SII: 4×1800(2h) bin 1×1
      Blue: 15×60(15′) bin 1×1
      Green: 15×60(15′) bin 1×1
      Ha 3nm: 20×1800(10h) bin 1×1
      Ha 3nm: 6×600(1h) bin 1×1
      Ha 3nm: 1×3600(1h) bin 2×2
      Red: 15×60(15′) bin 1×1
      Integration:
      24h 15′
      Avg. Moon age:
      28.83 days
      Avg. Moon phase:
      0.55%
      Mean SQM:
      18.50

      Basic astrometry details

      Astrometry.net job: 1887947

      RA center: 05h42m39s.4

      DEC center: +28°2212

      Pixel scale: 2.875 arcsec/pixel

      Orientation: 0.258 degrees

      Field radius: 0.862 degrees

      Resolution: 1664x1374

      File size: 1.7 MB

      Locations: The Hills Observatory, Manchester, United Kingdom

      Data source: Backyard

      Description

      Simeis 147, also known as the Spaghetti Nebula, SNR G180.0-01.7 or Sharpless 2-240, is a supernova remnant in the Milky Way, straddling the border between the constellations Auriga and Taurus.

      The nebulous area is fairly large with an almost spherical shell and filamentary structure. The remnant has an apparent diameter of approximately 3 degrees, an estimated distance of approximately 3000 (±350) light-years, and an age of approximately 40,000 years.

      It is believed that after its stellar explosion a rapidly spinning neutron star known as pulsar PSR J0538+2817 was left behind in the nebula core, emitting a strong radio signal.

      Info from: https://en.wikipedia.org/wiki/Simeis_147

      This image is a small section of the nebula, in fact it is panel 10 of a 16 panel mosaic that I started recently. Due to the rather long integration times for each panel, this mosaic will be considered a very long term project!

      Narrow band images processed as tone maps with RGB stars added after. Most of the processing is done in PixInsight and finished off in Photoshop.

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      Simeis 147 (Sharpless 2-240) Small section., 



    
        

            Mike Oates