Contains:Witch Head nebula, IC 2118, The star 29Ori, The star τOri, The star Rigel (βOri), The star λEri, The star Cursa (βEri), The star 66Eri, The star ψEri, The star 63Eri, The star 62Eri, The star ωEri, Part of the constellation Eridanus (Eri)

Image of the day 01/15/2014

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    Witch Head Nebula, 




    

        starhopper
    Witch Head Nebula

    Witch Head Nebula

    Technical card

    Imaging telescope or lens:Canon EF 200mm f/2.8 L

    Imaging camera:SBIG STL-11000

    Guiding telescope or lens:Canon EF 200mm f/2.8 L

    Guiding camera:SBIG STL-11000

    Software:PixInsightCCDSoft

    Filter:Baader Planetarium LRGB Filter Set

    Resolution: 1991x1322

    Dates: Dec. 30, 2013

    Frames: Baader Planetarium LRGB Filter Set: 39x240" bin 1x1

    Integration: 2.6 hours

    Darks: ~26

    Flats: ~59

    Bias: ~51

    Avg. Moon age: 27.26 days

    Avg. Moon phase: 5.70%

    Mean SQM: 21.50

    Astrometry.net job: 161117

    RA center: 76.888 degrees

    DEC center: -8.113 degrees

    Pixel scale: 19.071 arcsec/pixel

    Orientation: -179.548 degrees

    Field radius: 6.332 degrees

    Data source: Unknown

    Description

    Title: IC2118 in Eri
    Optic: Canon EF200f2.8 at f/2.8
    Filter: Baader 50mm LRGB
    Camera: SBIG STL11000M C2 at -20°C, selfguiding
    Exposures:
    L 21x4min (12 true L, 9xL from RGB);
    RGB 36:36:36min, subexposure 4min,
    26x Darks, 51x Bias, 59x Sky Flat
    Location: Saharasky, Marocco
    Date: 2013-11-30
    Preprocessing Pixinsight:
    Image Calibration, CosmeticCorrection, StarAlignment, Image Integration, RGB STF-Stretching, L masked stretch script, L-RGB combination, histogramm, MT
    PS: color enhancement, remove gradients, histogram, curves, minimum filter, cosmetic correction on Rigel

    Comments

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    starhopper
    starhopper
    License: None (All rights reserved)
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    Witch Head Nebula, 




    

        starhopper