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Contains:  Great Nebula in Orion, Horsehead nebula, IC 423, IC 426, IC 430, IC 431, IC 432, IC 434, IC 435, M 42, M 43, NGC 1973, NGC 1975, NGC 1976, NGC 1977, NGC 1980, NGC 1981, NGC 1982, NGC 1990, NGC 1999, NGC 2023, NGC 2024, Part of the constellation Orion (Ori), The star 42Ori, The star 45Ori, The star Alnilam (εOri), The star Alnitak (ζOri), The star Mintaka (δOri), The star θ1Ori, The star θ2Ori, The star ιOri, The star σOri

Image of the day 02/27/2020

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    Two panels deep field mosaic from Horsehead to M42 - LRGBHa composition, 



    
        

            David Lindemann
    Two panels deep field mosaic from Horsehead to M42 - LRGBHa composition
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    Two panels deep field mosaic from Horsehead to M42 - LRGBHa composition

    Technical card


    Dates:Feb. 16, 2020

    Frames:
    Ha 5nm: 35x1200" -20C bin 1x1
    Astrondon LRGB E-series 49.7 unmounted square: 102x30" -20C bin 1x1
    Astrondon LRGB E-series 49.7 unmounted square: 87x300" -20C bin 1x1
    Astrondon LRGB E-series 49.7 unmounted square: 218x4" -20C bin 1x1

    Integration: 20.0 hours

    Darks: ~50

    Flats: ~50

    Flat darks: ~50

    Bias: ~50

    Avg. Moon age: 22.71 days

    Avg. Moon phase: 44.00%

    Bortle Dark-Sky Scale: 3.00


    Basic astrometry details

    Astrometry.net job: 3270376

    RA center: 5h 35' 58"

    DEC center: -3° 28' 48"

    Pixel scale: 3.549 arcsec/pixel

    Orientation: 86.381 degrees

    Field radius: 4.044 degrees


    Resolution: 7408x3526

    Locations: Observatoire personnel, Vérossaz, Valais, Switzerland

    Data source: Backyard

    Comments

    Author

    dlindemann
    David Lindemann
    License: None (All rights reserved)
    231637
    Like

    Revisions

      Two panels deep field mosaic from Horsehead to M42 - LRGBHa composition, 



    
        

            David Lindemann
      Original
      Two panels deep field mosaic from Horsehead to M42 - LRGBHa composition, 



    
        

            David Lindemann
      B
    • Final
      Two panels deep field mosaic from Horsehead to M42 - LRGBHa composition, 



    
        

            David Lindemann
      C

    B

    Description: Deeper effect by shadow emphasis and more vivid colors

    C

    Description: New processing with additional OIII data captured in 2015

    Sky plot

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    Two panels deep field mosaic from Horsehead to M42 - LRGBHa composition, 



    
        

            David Lindemann

    In these public groups

    Deep Sky Mosaics
    Narrowband imaging