Hemisphere:  Southern  ·  Constellation: Canis Major (CMa)  ·  Contains:  16 omi01 CMa  ·  Sh2-308  ·  The star ο1CMa

Image of the day 01/12/2020

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    The Dolphin in Canis Major | Sh2-308, 


            Connor Matherne
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    The Dolphin in Canis Major | Sh2-308

    Technical card

    Imaging telescopes or lenses: Takahashi TOA-150

    Imaging cameras: FLI ML16200

    Mounts: Astro-Physics AP 1600 with encoders

    Guiding telescopes or lenses: Takahashi TOA-150

    Guiding cameras: Lodestar Autoguider X2

    Software: PixInsight

    Filters: Blue  ·  Green  ·  Red  ·  Finger Lakes Instruments Oiii 8nm  ·  Finger Lakes Instruments Ha 8nm

    Blue: 12x300"
    Green: 12x300"
    Finger Lakes Instruments Ha 8nm: 30x1800"
    Finger Lakes Instruments Oiii 8nm: 30x1800"
    Red: 12x300"

    Integration: 33.0 hours

    Astrometry.net job: 3369359

    RA center: 6h 54' 26"

    DEC center: -23° 50' 49"

    Pixel scale: 1.129 arcsec/pixel

    Orientation: -84.038 degrees

    Field radius: 0.823 degrees

    Resolution: 3400x4000

    Data source: Amateur hosting facility

    Remote source: DeepSkyWest


    A target that has alluded me as a northern hemisphere resident for quite some time. Another one of the many beautiful targets of the south that we seem to miss out on.

    This one in particular is also quite dim, especially in the Ha. Had a ton of fun bringing out those wavelengths specifically however since they mostly go overlooked due to the amazing structures in the Oiii.

    Blending RGB stars in was a pain, but that is nothing new ;)

    Clear skies!


    Sky plot

    Sky plot


    The Dolphin in Canis Major | Sh2-308, 


            Connor Matherne