Hemisphere:  Northern

Image of the day 01/26/2018

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


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

    Technical card

    Imaging telescopes or lenses: Takahashi FSQ-106 ED

    Imaging cameras: Starlight Xpress SX-814 Trius Monochrome CCD

    Mounts: Sky-Watcher EZ-EQ6 GT

    Guiding cameras: Starlight-XPress Lodestar Autoguider

    Software: Sequence Generator Pro  ·  Photoshop CS6  ·  PIXINSIGHT 1.8

    Filters: Astrodon 3nm SII  ·  Astrodon 3nm OIII  ·  Ha 3nm  ·  Red  ·  Green  ·  Blue

    Accessory: Lakeside Astro Motor Focus System  ·  Starlight Xpress SX 'Maxi wheel'  ·  Starlight Instruments FTF3545B-A Focuser

    Dates:Dec. 17, 2017

    Astrodon 3nm OIII: 19x1800" bin 1x1
    Astrodon 3nm SII: 4x1800" bin 1x1
    Blue: 15x60" bin 1x1
    Green: 15x60" bin 1x1
    Ha 3nm: 20x1800" bin 1x1
    Ha 3nm: 6x600" bin 1x1
    Ha 3nm: 1x3600" bin 2x2
    Red: 15x60" bin 1x1

    Integration: 24.2 hours

    Avg. Moon age: 28.83 days

    Avg. Moon phase: 0.55%

    Mean SQM: 18.50

    Basic astrometry details

    Astrometry.net job: 1887947

    RA center: 5h 42' 39"

    DEC center: +28° 22' 12"

    Pixel scale: 2.875 arcsec/pixel

    Orientation: 0.258 degrees

    Field radius: 0.862 degrees

    Resolution: 1664x1374

    Locations: The Hills Observatory, Manchester, United Kingdom

    Data source: Backyard


    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.



    Mike Oates
    License: None (All rights reserved)

    Sky plot

    Sky plot


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


            Mike Oates