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      NGC 4945
      Wallpaper author:
      Jonathan Lodge

      18 Sept 2023

      NGC 4945

      Following the recent public announcement of the winners and all shortlisted images I can now reveal my 2nd image that was shortlisted in this year's Astronomy Photographer of the Year Award.

      NGC 4945 is a spiral galaxy viewed edge-on from Earth that is thought to closely resemble our own Milky Way. Although obscured by dust, it is thought to have a bar shaped central region, with a core brighter than the Milky Way’s, likely containing a supermassive black hole.

      It is around 80,000 light years in diameter and is around 13 million light years away from Earth, receding at around 563 kilometres per second. It is one of the brightest galaxies in the nearby Centaurus A/M83 Group.

      Classified as both a Seyfert II and a starburst galaxy due to it’s extremely bright nucleus and high rates of star formation respectively when compared to normal galaxies.

      Dataset from which the image was processed

      NGC 5128

      24 credit

      Open
      Telescope Live
      CHI-1-CCD
      • Type of target
        ............................................................................................................................
        Galaxy
      • Camera
        ............................................................................................................................
        FLI ProLine PL9000
      • Target coordinates
        ............................................................................................................................
        RA 201.3651 Dec -43.0191
      • Hemisphere
        ............................................................................................................................
        Southern
      • Telescope location
        ............................................................................................................................
        Chile
      • Transient event
        ............................................................................................................................
        No
      • Observed on
        ............................................................................................................................
        26 Dec 2019 - 29 Jul 2021
      Filter
      Avg Exp (s)
      Total Exposure
      Subframes
      Luminance61910h40m62
      Halpha2133h40m62
      Green71812h10m61
      Red73812h30m61
      Blue71812h10m61

      NGC 4945