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Contains:  M 52, NGC 7654, Bubble nebula, NGC 7635, NGC 7538, NGC 7510

Image of the day 11/02/2018

Getting plate-solving status, please wait...
    Crowded Cassiopeia (Sh2-162, Sh2-157, M52, and more), 





    
        

            Gary Lopez
    Crowded Cassiopeia (Sh2-162, Sh2-157, M52, and more)

    Crowded Cassiopeia (Sh2-162, Sh2-157, M52, and more)

    Technical card

    Resolution: 4353x3291

    Dates:Oct. 16, 2018Oct. 17, 2018Oct. 19, 2018Oct. 20, 2018

    Frames:
    Astrodon Ha 3nm-31mm: 185x180" (gain: 139.00) -15C bin 1x1
    Astrodon OIII 3nm-31mm: 110x180" (gain: 139.00) -15C bin 1x1
    Astrodon SII 3nm-31mm: 69x180" (gain: 139.00) -15C bin 1x1

    Integration: 18.2 hours

    Darks: ~30

    Bias: ~50

    Avg. Moon age: 8.94 days

    Avg. Moon phase: 65.54%

    Bortle Dark-Sky Scale: 5.00

    Astrometry.net job: 2830665

    RA center: 349.330 degrees

    DEC center: 60.827 degrees

    Pixel scale: 2.305 arcsec/pixel

    Orientation: 79.189 degrees

    Field radius: 1.747 degrees

    Locations: Monterey Pines Observatory, Monterey, California, United States

    Data source: Backyard

    Description

    This area in the sky is filled with interesting objects. Among the crowd are the Bubble Nebula (Sh2-162), just beneath it the open cluster, M52, and above it, NGC 7538, a bright emission and reflection nebula. On the right side of the image are the familiar Lobster Claw (Sh2-157), and above it a non-symmetrical open cluster, NGC 7510. So much to enjoy in this FOV.

    I processed the SHO narrowband data in two ways, traditional Hubble Palette (version D), and a more natural coloring process for narrowband data with which I have been experimenting. I prefer the natural look. How about you?

    Comments

    Author

    GWLopez
    Gary Lopez
    License: None (All rights reserved)
    111518
    Like

    Revisions

      Crowded Cassiopeia (Sh2-162, Sh2-157, M52, and more), 





    
        

            Gary Lopez
      Original
      Crowded Cassiopeia (Sh2-162, Sh2-157, M52, and more), 





    
        

            Gary Lopez
      B
      Crowded Cassiopeia (Sh2-162, Sh2-157, M52, and more), 





    
        

            Gary Lopez
      C
      Crowded Cassiopeia (Sh2-162, Sh2-157, M52, and more), 





    
        

            Gary Lopez
      D
      Crowded Cassiopeia (Sh2-162, Sh2-157, M52, and more), 





    
        

            Gary Lopez
      E
      Crowded Cassiopeia (Sh2-162, Sh2-157, M52, and more), 





    
        

            Gary Lopez
      F
      Crowded Cassiopeia (Sh2-162, Sh2-157, M52, and more), 





    
        

            Gary Lopez
      G
    • Final
      Crowded Cassiopeia (Sh2-162, Sh2-157, M52, and more), 





    
        

            Gary Lopez
      H

    B

    Hubble Palette version

    C

    NB natural color version

    D

    Hubble Palette version with a bit of clean up

    E

    Cleaned up a few blown out areas.

    F

    Reprocessed to improve star color and faint nebulosity

    G

    One last color tweak. Really, I'm finished now. Really.

    H

    Reprocess with better small-scale noise control.

    Sky plot

    Sky plot

    Histogram

    Crowded Cassiopeia (Sh2-162, Sh2-157, M52, and more), 





    
        

            Gary Lopez