Hemisphere:  Southern  ·  Constellation: Eridanus (Eri)  ·  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

    Witch Head Nebula, 



    
        

            starhopper
    Witch Head Nebula
    Powered byPixInsight

    Witch Head Nebula

    Image of the day 01/15/2014

      Witch Head Nebula, 



    
        

            starhopper
      Witch Head Nebula
      Powered byPixInsight

      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

      Software: PixInsight  ·  CCDSoft

      Filters: Baader Planetarium LRGB Filter Set


      Dates:Dec. 30, 2013

      Frames:Baader Planetarium LRGB Filter Set: 39x240" (2h 36') bin 1x1

      Integration: 2h 36'

      Darks: 26

      Flats: 59

      Bias: 51

      Avg. Moon age: 27.26 days

      Avg. Moon phase: 5.70%

      Mean SQM: 21.50


      Basic astrometry details

      Astrometry.net 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

      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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      Witch Head Nebula, 



    
        

            starhopper