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Contains:  NGC 5088

Image of the day 02/21/2019

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    Gum15 in Vela: A close-up view, 





    
        

            Eduardo Oliveira
    Gum15 in Vela: A close-up view

    Gum15 in Vela: A close-up view

    Technical card

    Imaging telescope or lens:Astro-Tech 8" RC

    Imaging camera:Atik 314L+ Mono

    Mount:Astro-Physics Mach1GTO

    Guiding telescope or lens:Orion ShortTube 80

    Guiding camera:ZWO ASI 120 MM

    Focal reducer:Astro Physics CCDT67 0.67x

    Software:Astrophotography ToolsPixinsightPHD GUIDING

    Filter:Baader Planetarium LRGB CCD 1.25"

    Accessory:ATIK EFW2

    Resolution: 1373x1024

    Dates:Jan. 31, 2019Feb. 1, 2019

    Frames:
    Baader Planetarium Blue 1.25": 15x300" -6C bin 1x1
    Baader Planetarium Green 1.25": 15x300" -6C bin 1x1
    Baader Planetarium Luminance 1.25": 40x300" -6C bin 1x1
    Baader Planetarium Red 1.25": 20x300" -6C bin 1x1

    Integration: 7.5 hours

    Darks: ~40

    Flats: ~10

    Bias: ~70

    Avg. Moon age: 26.05 days

    Avg. Moon phase: 13.29%

    Bortle Dark-Sky Scale: 4.00

    Temperature: 21.25

    Astrometry.net job: 2515176

    RA center: 131.201 degrees

    DEC center: -41.279 degrees

    Pixel scale: 1.058 arcsec/pixel

    Orientation: 244.320 degrees

    Field radius: 0.252 degrees

    Locations: Backyard (Diamantina, MG, Brazil), Diamantina, Minas Gerais, Brazil

    Data source: Backyard

    Description

    This interesting HII region was introduced to myself by my friend Luiz Duczmal, who recently imaged it with a wider field (https://www.astrobin.com/full/387336/0/). GUM15, in the constellation of Vela is an active HII region much less known than its more famous sibling, the Trifid Nebula. The hydrogen gas is ionized probably by the multiple star HD74804, a BIII/5 giant that appears off-center in the image together with its well resolved 3 components at lower left of the star (SIMBAD).
    The post-processing of the image after calibration and registration was skillfully done by my friend Roberto Colombari, whose collaboration in this work I thank very much.

    Comments

    Author

    eoliveira
    Eduardo Oliveira
    License: None (All rights reserved)
    5954
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    Revisions

      Gum15 in Vela: A close-up view, 





    
        

            Eduardo Oliveira
      Original
    • Final
      Gum15 in Vela: A close-up view, 





    
        

            Eduardo Oliveira
      D

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    Gum15 in Vela: A close-up view, 





    
        

            Eduardo Oliveira