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Image of the day 03/18/2019

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    Hershels Ray : NGC 2736, 





    
        

            Andys Astro
    Hershels Ray : NGC 2736

    Hershels Ray : NGC 2736

    Technical card

    Resolution: 3196x2441

    Dates:Jan. 23, 2019

    Frames: 114x600"

    Integration: 19.0 hours

    Avg. Moon age: 17.41 days

    Avg. Moon phase: 92.29%

    Astrometry.net job: 2570467

    RA center: 134.932 degrees

    DEC center: -46.017 degrees

    Pixel scale: 0.968 arcsec/pixel

    Orientation: 216.793 degrees

    Field radius: 0.541 degrees

    Data source: Backyard

    Description

    Hey Folks,

    Been sitting on this one for a while - but was distracted with interstate speaking gigs etc. so here is my version of NGC 2736 in Bicolour +RGB.

    20 hrs data Ha/O3/RGB - 660/480/20/20/20 from my suburban local in Melbs.

    Taken on the QSI 683 WSG8 and the new Sidereal Trading modded Skywatcher 10" f4 CF Newtonian on the TAK NJP mount.

    Hershel's Ray is the brightest part of the huge Vela Supernova Remnant - travelling across space at at a cruizy 500,000 km/hr!

    Moving from bottom to top in the frame near the centre of this image- thin, bright, braided filaments are actually long ripples in a cosmic sheet of glowing gas seen almost edge-on. The shock wave plows through interstellar space at over 500,000 kilometres per hour. Cataloged as NGC 2736, its elongated appearance suggests its popular name, the Pencil Nebula.

    The Pencil Nebula is about 5 light-years long and 800 light-years away, but represents only a small part of the Vela supernova remnant. The Vela remnant itself is around 100 light-years in diameter, the expanding debris cloud of a star that was seen to explode about 11,000 years ago. Initially, the shock wave was moving at millions of kilometres per hour but has slowed considerably, sweeping up surrounding interstellar material.

    In the narrowband, wide field image, red and blue colours track the characteristic glow of ionised hydrogen and oxygen atoms. (APOD)

    Checkout my shiny new website https://andysastro.com/

    Comments

    Author

    Andys_Astropix
    Andys Astro
    License: None (All rights reserved)
    119513
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    Hershels Ray : NGC 2736, 





    
        

            Andys Astro