Hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Great Orion Nebula  ·  IC 420  ·  IC 430  ·  Lower Sword  ·  M 42  ·  M 43  ·  Mairan's Nebula  ·  NGC 1973  ·  NGC 1975  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  NGC 1981  ·  NGC 1982  ·  Orion Nebula  ·  The star 42Ori  ·  The star 45Ori  ·  The star 49Ori  ·  The star θ1Ori  ·  The star θ2Ori  ·  The star ιOri  ·  The star υOri  ·  Upper Sword  ·  the Running Man Nebula

Image of the day 01/25/2021

Getting plate-solving status, please wait...
    The Great Orion Nebula - 4 panel mosaic, 



    
        

            Steve Milne
    The Great Orion Nebula - 4 panel mosaic
    Powered byPixInsight

    The Great Orion Nebula - 4 panel mosaic

    Image of the day 01/25/2021

    Getting plate-solving status, please wait...
      The Great Orion Nebula - 4 panel mosaic, 



    
        

            Steve Milne
      The Great Orion Nebula - 4 panel mosaic
      Powered byPixInsight

      The Great Orion Nebula - 4 panel mosaic

      Technical card

      Imaging telescopes or lenses: Takahashi FSQ106ED  ·  TEC-140

      Imaging cameras: QSI683wsg  ·  QSI 690 WSG-8

      Mounts: 10 Micron GM1000HPS  ·  10 Micron GM2000 HPS II UP

      Guiding telescopes or lenses: Takahashi FSQ106ED

      Guiding cameras: Starlight Xpress Lodestar X2

      Software: Sequence Generator Pro  ·  Adobe Photoshop 6 CS  ·  AstroPixelProcessor  ·  Pixinsight 1.8

      Filters: Astrodon Ha 5nm  ·  Astrodon Tru-Balance LRGB E-Series Gen 2 Blue  ·  Astrodon Tru-Balance LRGB E-Series Gen 2 Green  ·  Astrodon Tru-Balance LRGB E-Series Gen 2 Red  ·  Astrodon Tru-Balance LRGB E-Series Gen 2 Luminance


      Dates:Jan. 13, 2021Jan. 16, 2021

      Frames:
      Astrodon Ha 5nm: 72x1200" (24h) bin 1x1
      Astrodon Tru-Balance LRGB E-Series Gen 2 Blue: 156x300" (13h) bin 1x1
      Astrodon Tru-Balance LRGB E-Series Gen 2 Green: 156x300" (13h) bin 1x1
      Astrodon Tru-Balance LRGB E-Series Gen 2 Luminance: 24x15" (6') bin 1x1
      Astrodon Tru-Balance LRGB E-Series Gen 2 Luminance: 60x180" (3h) bin 1x1
      Astrodon Tru-Balance LRGB E-Series Gen 2 Luminance: 120x30" (1h) bin 1x1
      Astrodon Tru-Balance LRGB E-Series Gen 2 Luminance: 120x300" (10h) bin 1x1
      Astrodon Tru-Balance LRGB E-Series Gen 2 Luminance: 24x60" (24') bin 1x1
      Astrodon Tru-Balance LRGB E-Series Gen 2 Luminance: 72x600" (12h) bin 1x1
      Astrodon Tru-Balance LRGB E-Series Gen 2 Red: 156x300" (13h) bin 1x1

      Integration: 89h 30'

      Avg. Moon age: 1.84 days

      Avg. Moon phase: 6.18%


      Basic astrometry details

      Astrometry.net job: 4162181

      RA center: 5h 35' 13"

      DEC center: -5° 42' 54"

      Pixel scale: 2.094 arcsec/pixel

      Orientation: 0.875 degrees

      Field radius: 2.065 degrees


      Resolution: 4333x5623

      Locations: E-EyE, Fregenal de la Sierra, Extremadura, Spain

      Data source: Own remote observatory

      Remote source: e-EyE Extremadura

      Description

      Messier 42 needs no preamble. It is around 1,400 light years away and about 24 light years across.

      This is a 4 panel mosaic that Barry and I did on our remote FSQ106 rig. Whilst M42 would have fitted within the FOV of the FSQ106 and KAF8300 combination, we wanted to set the nebula in a wider context. For various reasons, it took us some time to complete the project. We began on 11 January 2018 and did not finish until 13 January 2021.

      Technical details are as follows:

      Telescope: Takahashi FSQ 106

      Camera: QSI 683

      Filters: Astrodon

      Mount: 10 Micron GM1000HPS

      Ha: 72 x 1200s

      Lum: 120 x 300s

      Lum: 60 x 180s

      Lum: 120 x 30s

      Red: 96 x 300s

      Green: 96 x 300s

      Blue: 96 x 300s

      At the same time that we were finishing the Tak Orion project, we were shooting another (2 panel) project of M43 and Running Man using our TEC 140 rig. In revison D, I incorporated the data from the TEC project in an attempt to provide more resolution in the core.

      Telescope: TEC 140

      Camera: QSI 690

      Filters: Astrodon

      Mount: 10 Micron GM2000HPS

      Lum: 72 x 600s

      Lum: 24 x 60s

      Lum: 24 x 15s

      Red: 60 x 300s

      Green 60 x 300s

      Blue: 60 x 300s

      Total exposure time 89 hours and 30 minutes.

      Data: Steve Milne & Barry Wilson

      Processing: Steve Milne

      Comments

      Revisions

        The Great Orion Nebula - 4 panel mosaic, 



    
        

            Steve Milne
        Original
        The Great Orion Nebula - 4 panel mosaic, 



    
        

            Steve Milne
        B
        The Great Orion Nebula - 4 panel mosaic, 



    
        

            Steve Milne
        C
        The Great Orion Nebula - 4 panel mosaic, 



    
        

            Steve Milne
        D
        The Great Orion Nebula - 4 panel mosaic, 



    
        

            Steve Milne
        E
      • Final
        The Great Orion Nebula - 4 panel mosaic, 



    
        

            Steve Milne
        F

      D

      Description: I managed to get a bit more detail in the core from the TEC data mentioned in the description.

      Uploaded: ...

      E

      Description: Some minor adjustments to contrast

      Uploaded: ...

      Sky plot

      Sky plot

      Histogram

      The Great Orion Nebula - 4 panel mosaic, 



    
        

            Steve Milne