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Contains:  NGC 6866, The star 30Cyg, The star 31Cyg, The star 32Cyg

Image of the day 11/30/2018

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    Northwestern Cygnus - 8 panel mosaic (HaOIIIRGB), 


            Nico Carver
      Northwestern Cygnus - 8 panel mosaic (HaOIIIRGB), 


            Nico Carver

      Northwestern Cygnus - 8 panel mosaic (HaOIIIRGB)

      Technical card

      Dates:June 24, 2018June 29, 2018July 2, 2018July 3, 2018July 7, 2018July 9, 2018July 11, 2018July 26, 2018July 27, 2018Aug. 3, 2018Aug. 4, 2018Aug. 6, 2018Aug. 10, 2018Aug. 30, 2018Oct. 13, 2018Oct. 18, 2018Oct. 29, 2018Nov. 8, 2018Nov. 11, 2018Nov. 12, 2018Nov. 13, 2018

      Astrodon B Gen.2 E-series: 143x60" (gain: 75.00) -15C bin 1x1
      Astrodon G Gen.2 E-series: 142x60" (gain: 75.00) -15C bin 1x1
      Astrodon R Gen.2 E-series: 142x60" (gain: 75.00) -15C bin 1x1
      Astrodon Tru-Balance 1.25" 3nm OIII: 142x600" (gain: 200.00) -15C bin 1x1
      Astrodon Tru-Balance 1.25" 5nm Ha: 186x300" (gain: 200.00) -15C bin 1x1

      Integration: 46.3 hours

      Avg. Moon age: 15.77 days

      Avg. Moon phase: 50.83% job: 2387006

      RA center: 20h 14' 38"

      DEC center: +45° 45' 21"

      Pixel scale: 2.459 arcsec/pixel

      Orientation: 73.846 degrees

      Field radius: 3.325 degrees

      Resolution: 8050x5475

      Locations: Backyard, Newark, Delaware, United States; Sawin Observatory, Hockessin, Delaware, United States

      Data source: Traveller


      This region of Cygnus west of Deneb is anchored by the bright and colorful stars 30 and 31 Cygni. There are many types of interesting and overlapping nebulae in this region including many HII regions catalogued by Dickel, Wendker, and Bieritz, as well as more recent discoveries such as the giant supernova remnant known as G 82.2+5.3 and the much smaller possible planetary nebula PN PM 1-320. This was my most challenging photo yet with more than 46 hours of integration, and the time-consuming process of creating a seamless 8 panel mosaic. This image has been my sole focus from June through November.

      Thank you:
      My neighbor Rachel David for being my excellent assistant and "second in command" throughout the summer.
      Sharon Roat, Mt. Cuba Astronomical Observatory, and Frank Colosimo (Blue Mountain Vista) for allowing me to capture many hours of this mosaic away from the streetlights of Newark.
      The Delaware Astronomical Society's Astrophotography Special Interest Group for all the advice and support.
      My friends Andrew and Kurt for their feedback on my work-in-progress.
      and Maggie Thrash for supporting me in all things.



      Nico Carver
      License: Attribution-ShareAlike Creative Commons


      • Final
        Northwestern Cygnus - 8 panel mosaic (HaOIIIRGB), 


            Nico Carver
        Northwestern Cygnus - 8 panel mosaic (HaOIIIRGB), 


            Nico Carver


      Description: Annotated using the following catalogs: New Galactic Catalog (NGC), Lynds' Bright Nebulae (LBN), Lynds' Dark Nebulae (LDN), Dave Green's supernova remnants (G), Preite-Martinez' Possible Planetary Nebulae (PM), Barnards' Catalog of Dark Markings in the Sky (B), and the Dickel, Wendker, Bieritz catalog of the Cygnus X region (DWB).

      Sky plot

      Sky plot


      Northwestern Cygnus - 8 panel mosaic (HaOIIIRGB), 


            Nico Carver