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Contains:  NGC 2343, NGC 2335, IC 2177

Image of the day 03/07/2019

Getting plate-solving status, please wait...
    Seagull Nebula (IC2177, Sh2-292)), 





    
        

            Gary Lopez
    Seagull Nebula (IC2177, Sh2-292))

    Seagull Nebula (IC2177, Sh2-292))

    Technical card

    Resolution: 4522x3419

    Dates:Feb. 21, 2019Feb. 22, 2019

    Frames:
    Astrodon B Gen 2 E-series 31mm: 15x60" (gain: 139.00) -15C bin 2x2
    Astrodon G Gen 2 E-series 31mm: 8x60" (gain: 139.00) -15C bin 2x2
    Astrodon Ha 3nm-31mm: 83x180" (gain: 139.00) -15C bin 1x1
    Astrodon OIII 3nm-31mm: 40x180" (gain: 139.00) -15C bin 2x2
    Astrodon R Gen 2 E-series 31mm: 11x60" (gain: 139.00) -15C bin 2x2
    Astrodon SII 3nm-31mm: 33x180" (gain: 139.00) -15C bin 2x2

    Integration: 8.4 hours

    Darks: ~30

    Bias: ~50

    Avg. Moon age: 17.47 days

    Avg. Moon phase: 91.66%

    Bortle Dark-Sky Scale: 5.00

    Astrometry.net job: 2545854

    RA center: 106.484 degrees

    DEC center: -10.625 degrees

    Pixel scale: 1.414 arcsec/pixel

    Orientation: 112.965 degrees

    Field radius: 1.113 degrees

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

    Data source: Backyard

    Description

    Storms have been rolling through one after another without much of a break, until last week when the sky was visible for a few hours over two night. Seagull Nebula rises only 20 degrees or so above my house and tree line for about four hours a night. I was able to capture 8 hours of narrowband and a bit or RGB data, not nearly enough to achieve the detail and suppress the noise, but enough to get a start at imaging this object. The first version is a standard SHO (Hubble Palette) rendition. Version B is a "natural" narrowband, using Steve Milne's Pixel Math formula. Version C is a NBRGB effort. I'm favoring the SHO version, but the natural version has good luminance values in the OIII channel (blues).

    Since there is no clear weather in the near future I'll have to wait until next year to finish data collection. This first processing effort tells me I need two to three times more data to do justice to this wonderful nebula.

    Comments

    Author

    GWLopez
    Gary Lopez
    License: None (All rights reserved)
    11568
    Like

    Revisions

    • Final
      Seagull Nebula (IC2177, Sh2-292)), 





    
        

            Gary Lopez
      Original
      Seagull Nebula (IC2177, Sh2-292)), 





    
        

            Gary Lopez
      B
      Seagull Nebula (IC2177, Sh2-292)), 





    
        

            Gary Lopez
      C

    B

    "Natural" narrowband version

    C

    Narrowband+RGB version

    Sky plot

    Sky plot

    Histogram

    Seagull Nebula (IC2177, Sh2-292)), 





    
        

            Gary Lopez