Hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  NGC 2237  ·  NGC 2238  ·  NGC 2239  ·  NGC 2246  ·  Rosette A  ·  Rosette B  ·  Rosette Nebula  ·  The star 12Mon

Image of the day 01/09/2022

Getting plate-solving status, please wait...
    Rosette Nebula (NGC2238) in SHO with RGB stars, 



    
        

            Jacob Heppell
    Rosette Nebula (NGC2238) in SHO with RGB stars
    Powered byPixInsight

    Rosette Nebula (NGC2238) in SHO with RGB stars

    Image of the day 01/09/2022

    Getting plate-solving status, please wait...
      Rosette Nebula (NGC2238) in SHO with RGB stars, 



    
        

            Jacob Heppell
      Rosette Nebula (NGC2238) in SHO with RGB stars
      Powered byPixInsight

      Rosette Nebula (NGC2238) in SHO with RGB stars

      Equipment

      Imaging Telescopes Or Lenses
      Skywatcher 250/1000 - Quattro C10
      Imaging Cameras
      QHY268M
      Mounts
      SkyWatcher NEQ6
      Filters
      Antlia Green 36mm · Antlia Blue 36mm · Antlia Red 36mm · Antlia 3nm Pro SII 36mm · Antlia 3nm Pro OIII 36mm · Antlia 3nm Pro Ha 36mm
      Accessories
      QHYCCD QHYOAG-M · Tele Vue Paracorr Type 2 · QHYCCD QHYCFW3 Filter Wheel
      Software
      Sequence Generator Pro · Registar 1.0 · PHD2 · DeepSkyStacker · Abobe Photoshop CS5
      Guiding Cameras
      QHY5III290M

      Acquisition details

      Frames:
      187x900" (46h 45')
      Integration:
      46h 45'

      Basic astrometry details

      Astrometry.net job: 5344255

      RA center: 06h31m43s.4

      DEC center: +04°5906

      Pixel scale: 0.672 arcsec/pixel

      Orientation: 358.892 degrees

      Field radius: 0.661 degrees

      Resolution: 5893x3929

      Data source: Backyard

      Description

      Well for the third year in a row, I've decided to image the Rosette nebula. But unlike previous years, I'm now armed with a QHY268M, 3nm Antlia narrowband filters, and a bit more astro wisdom in general (still with my 10" Quattro). So you could say I've been using Rosette as something of a milestone target to see how I've progressed in this hobby. Anyway, after spending the better part of Christmas eve processing my 46-odd hours of SHO-RGB data (that I kept), this is what I have to show for it. Unfortunately, my field of view isn't wide enough to get the whole nebula (extra half degree would help a lot) so there's some nice outer regions (H-alpha rich) that can't be seen. What this meant practically is that I wasn't willing to push the [OIII] to much or that's all you would see. Because my tone map approach to doing an SHO composite gives largely white stars, I decided to incorporate some RGB stars into the image.

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      Rosette Nebula (NGC2238) in SHO with RGB stars, 



    
        

            Jacob Heppell