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      Sh2-273 in RGB enhanced with SII and OIII
      Wallpaper author:
      Marek Idec

      15 Jul 2023

      Sh2-273 in RGB enhanced with SII and OIII

      Usually, the H-alpha filter improves broadband RGB images very much. This time, though, I decided to use SII instead to make the nebula more interesting. This particular region in the Monoceros constellation is fascinating, with many objects of various sizes suitable for telescopes with longer focal lengths. The famous NGC 2264, which identifies both the Cone Nebula and the Christmas Tree Cluster, is in the center of Sh2-273. Reflection nebulae shine in blue at the top of the image, especially IC2169, which is barely visible in narrowband images. IC446, NGC2245, NGC2247, and IC448 are too small to show any details in this scale, but they are also bright enough to be easily found, as well as the ghost-shaped NGC2261 nebula.

      Dataset from which the image was processed

      NGC 2264

      4 credit

      Open
      Telescope Live
      AUS-2-CCD
      • Type of target
        ............................................................................................................................
        Emission Nebula
      • Camera
        ............................................................................................................................
        FLI PL16803
      • Target coordinates
        ............................................................................................................................
        RA 100.25 Dec 9.88333
      • Hemisphere
        ............................................................................................................................
        Southern
      • Telescope location
        ............................................................................................................................
        Australia
      • Transient event
        ............................................................................................................................
        No
      • Observed on
        ............................................................................................................................
        11 Dec 2020 - 09 Nov 2022
      Filter
      Avg Exp (s)
      Total Exposure
      Subframes
      Halpha6003h18
      Red2001h18
      Green2001h18
      Blue2001h18

      Sh2-273 in RGB enhanced with SII and OIII