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Image of the day 09/24/2022

Getting plate-solving status, please wait...
    Wizard Nebula in NRB with RGB Stars (and comparison of RGB-Star addition), 



    
        

            Robert Shepherd
    Powered byPixInsight

    Wizard Nebula in NRB with RGB Stars (and comparison of RGB-Star addition)

    Image of the day 09/24/2022

    Getting plate-solving status, please wait...
      Wizard Nebula in NRB with RGB Stars (and comparison of RGB-Star addition), 



    
        

            Robert Shepherd
      Powered byPixInsight

      Wizard Nebula in NRB with RGB Stars (and comparison of RGB-Star addition)

      Acquisition details

      Dates:
      Sept. 4, 2022 ·  Sept. 6, 2022 ·  Sept. 10, 2022
      Frames:
      Baader H-alpha Ultra-Narrowband 3.5nm (CMOS-Optimized) 36 mm: 63×600(10h 30′) (gain: 100.00) -5°C bin 1×1
      Baader O-III Ultra-Narrowband 4nm (CMOS-Optimized) 36 mm: 32×600(5h 20′) (gain: 100.00) -5°C bin 1×1
      Baader S-II Ultra-Narrowband 4nm (CMOS-Optimized) 36 mm: 47×600(7h 50′) (gain: 100.00) -5°C bin 1×1
      ZWO Blue: 27×120(54′) (gain: 0.00) -5°C bin 1×1
      ZWO Green: 27×120(54′) (gain: 0.00) -5°C bin 1×1
      ZWO Red: 27×120(54′) (gain: 0.00) -5°C bin 1×1
      Integration:
      26h 22′
      Darks:
      50
      Flats:
      30
      Flat darks:
      50
      Avg. Moon age:
      11.14 days
      Avg. Moon phase:
      79.46%
      Bortle Dark-Sky Scale:
      2.00

      RA center: 22h46m53s.833

      DEC center: +58°0312.57

      Pixel scale: 0.675 arcsec/pixel

      Orientation: -98.658 degrees

      Field radius: 0.674 degrees

      WCS transformation: thin plate spline

      More info:Open 

      Resolution: 5954x4014

      File size: 9.0 MB

      Data source: Own remote observatory

      Remote source: PixelSkies

      Description

      Finally I'm getting comfortable with NRB colours.
      On this project I decided to try out all the interesting new modes of RGB stars combination with NRB.
      The renditions show following methods:
      - Original RGB stars      
      - Screen function in Pixinsight Pixelmath - combine(x,y,op_screen())
      - James Lamb's new Enhanced Star Blending Method (https://www.youtube.com/watch?v=hX3LKhwqwvY&t=416s
      - Bill Blanshan’s new method for RGB-star / NRB combination (https://www.youtube.com/watch?v=nqnONWVwf-A&t=2085s) M1 -M5 show the 5 different formulas/ methods in his pixinsight formulas.

      As you can tell, the results depend a lot on the background colour of the nebula in combination with the colour of the stars.
      What are your thoughts on the results?

      C&C welcome

      Comments

      Revisions

      • Final
        Wizard Nebula in NRB with RGB Stars (and comparison of RGB-Star addition), 



    
        

            Robert Shepherd
        Original
        Wizard Nebula in NRB with RGB Stars (and comparison of RGB-Star addition), 



    
        

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        Wizard Nebula in NRB with RGB Stars (and comparison of RGB-Star addition), 



    
        

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        Wizard Nebula in NRB with RGB Stars (and comparison of RGB-Star addition), 



    
        

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        E
        Wizard Nebula in NRB with RGB Stars (and comparison of RGB-Star addition), 



    
        

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        F

      C

      Title: Comparison RGB stars addition (1)

      Uploaded: ...

      D

      Title: Comparison RGB stars addition (2)

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      E

      Title: Comparison RGB stars addition (3)

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      F

      Title: Comparison RGB stars addition (5)

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      Sky plot

      Sky plot

      Histogram

      Wizard Nebula in NRB with RGB Stars (and comparison of RGB-Star addition), 



    
        

            Robert Shepherd

      In these public groups

      PixelSkies
      Reflecting Telescope Group