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

Image of the day 01/15/2014

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    Witch Head Nebula, 


    Witch Head Nebula
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    Witch Head Nebula

    Technical card

    Imaging telescopes or lenses:Canon EF 200mm f/2.8 L

    Imaging cameras:SBIG STL-11000

    Guiding telescopes or lenses:Canon EF 200mm f/2.8 L

    Guiding cameras:SBIG STL-11000


    Filters:Baader Planetarium LRGB Filter Set

    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

    Basic astrometry details job: 161117

    RA center: 5h 7' 33"

    DEC center: -8° 6' 46"

    Pixel scale: 19.071 arcsec/pixel

    Orientation: -179.548 degrees

    Field radius: 6.332 degrees

    Resolution: 1991x1322


    Title: IC2118 in Eri
    Optic: Canon EF200f2.8 at f/2.8
    Filter: Baader 50mm LRGB
    Camera: SBIG STL11000M C2 at -20°C, selfguiding
    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



    License: None (All rights reserved)

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    Witch Head Nebula,