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Contains:  The star 59Ori, The star 56Ori

Image of the day 02/14/2020

Getting plate-solving status, please wait...
    The Boogie Man in Orion, 





    
        

            Min Xie
    The Boogie Man in Orion

    The Boogie Man in Orion

    Technical card

    Resolution: 3175x2196

    Dates:Oct. 28, 2019Oct. 29, 2019Oct. 30, 2019Nov. 1, 2019Nov. 2, 2019Nov. 3, 2019Nov. 8, 2019Nov. 9, 2019Nov. 10, 2019Nov. 14, 2019Nov. 15, 2019Nov. 16, 2019Nov. 23, 2019Nov. 24, 2019Nov. 25, 2019

    Frames:
    Astrodon 3nm Ha 31mm: 660x300" (gain: 139.00) -20C bin 1x1
    Astrodon E Series Gen II Blue 31mm: 33x240" -20C bin 1x1
    Astrodon E Series Gen II Green 31mm: 30x240" -20C bin 1x1
    Astrodon E Series Gen II Red 31mm: 55x240" -20C bin 1x1

    Integration: 62.9 hours

    Darks: ~40

    Flats: ~40

    Flat darks: ~40

    Avg. Moon age: 12.76 days

    Avg. Moon phase: 44.53%

    Bortle Dark-Sky Scale: 7.69

    Mean SQM: 18.71

    Temperature: 6.44

    Astrometry.net job: 3236479

    RA center: 5h 56' 5"

    DEC center: +1° 52' 37"

    Pixel scale: 3.022 arcsec/pixel

    Orientation: 2.479 degrees

    Field radius: 1.621

    Locations: Backyard, Coppell, Texas, United States; TAS Atoka Dark Site, Atoka, Oklahoma, United States

    Data source: Backyard

    Description

    LDN1622 is always an interesting object to me. The most interesting part for me is the Parsamian 3 (HBC515, HD288313) area. Anyhow, it looks like a fish trying pretty hard swimming toward the Orion nebula and about to cross the red river of Barnard's Loop...

    It has been a year since the last HaLRGB image. It's about time.

    On and off I captured about 50+ hours of Ha data from the backyard (Guess I had nothing else in mind at that time. LOL). But only got 7.6 hours of RGB data from Atoka dark site. I assume the dark site data is far away from enough. But can't resist the temptation to take a peek what it would look like. Then here it is.

    As expected the dark cloud is not showing up enough. I consider this is a project in progress. More data will be added in next couple of years to get the "desired" result.

    Lacking RGB data indeed push the post-processing to the limit. A lot of Range Selection + PixelMath combinations used to extract every single drop of the signal. The starless version of the RGB masters look exactly like heavily pounded battle ground - all kinds of holes. :)

    The synthetic luminance master was created from starless Ha master joined with the luminance data extracted from combined RGB master. Another fun process to put the pre-main-sequence star area back into the final luminance master.

    Well that's it for now. Looking forward to the next round on this target. 👁

    Pre-processing of Narrowband Masters

    – Calibration / Integration, Astro Pixel Processor
    – Deconvolution, PixInsight (Only for H-Alpha)
    – MultiscaleLinearTransform (Denoise), PixInsight
    - Range Selection, PixInsight
    - PixelMath, PixInsight
    – ScreenTransferFunction / HistogramTransformation, PixInsight.

    Pre-processing of RGB Masters

    – Calibration / Integration, Astro Pixel Processor
    – Dynamic Background Extraction, PixInsight
    – MorphologicalTransformation, PixInsight
    – ScreenTransferFunction / HistogramTransformation, PixInsight.

    RGB Combination

    – LRGBCombination, PixInsight
    – MorphologicalTransformation, PixInsight
    – ScreenTransferFunction / HistogramTransformation, PixInsight.

    Narrowband Combination

    – PixelMath, PixInsight
    – ScreenTransferFunction / HistogramTransformation, PixInsight.

    Narrband & RGB Combination

    – PixelMath, PixInsight
    - Detail adjustments, Adobe Lightroom Classic
    – Final Export, Photoshop

    Comments

    Author

    mxcoppell
    Min Xie
    License: Attribution-NonCommercial Creative Commons
    313751
    Like

    Revisions

    • Final
      The Boogie Man in Orion, 





    
        

            Min Xie
      Original
      The Boogie Man in Orion, 





    
        

            Min Xie
      C
      The Boogie Man in Orion, 





    
        

            Min Xie
      D

    C

    Portrait Mode...

    D

    APOD! :-)

    Sky plot

    Sky plot

    Histogram

    The Boogie Man in Orion, 





    
        

            Min Xie