Hemisphere:  Southern  ·  Constellation: Hydra (Hya)  ·  Contains:  NGC 3109  ·  NGC3109  ·  PGC182084  ·  PGC182096  ·  PGC29128  ·  PGC767547  ·  PGC769786  ·  PGC771633  ·  PGC771755  ·  PGC771907  ·  PGC772230  ·  PGC772833

Image of the day 04/20/2021

Getting plate-solving status, please wait...
    The Giant Blue Stars of NGC 3109, 



    
        

            Nicolas ROLLAND
    Powered byPixInsight

    Image of the day 04/20/2021

    Getting plate-solving status, please wait...
      The Giant Blue Stars of NGC 3109, 



    
        

            Nicolas ROLLAND
      Powered byPixInsight

      Imaging telescopes or lenses: PlaneWave Instruments CDK 17"

      Imaging cameras: SBIG STXL-11002

      Mounts: Paramount ME

      Software: Photoshop CC  ·  Pixinsight

      Filters: Astrodon Ha 3nm  ·  Astrodon LRGB Gen2


      Dates:Jan. 11, 2021

      Frames:
      Astrodon Ha 3nm: 14x1800" bin 2x2
      Astrodon LRGB Gen2: 67x1200" bin 1x1

      Integration: 29.3 hours

      Avg. Moon age: 27.70 days

      Avg. Moon phase: 3.75%


      Astrometry.net job: 4402968

      RA center: 10h 3' 7"

      DEC center: -26° 9' 43"

      Pixel scale: 0.316 arcsec/pixel

      Orientation: -134.065 degrees

      Field radius: 0.403 degrees


      Resolution: 7608x5128

      Data source: Own remote observatory

      Remote source: Observatorio El Sauce

      Description

      NGC 3109 is classified as a small barred Magellanic type spiral or irregular galaxy 4.3 million light years from Earth. NGC 3109 has a mass of about 2.3×10 ^9 times the mass of our Sun, of which 20% is in the form of neutral hydrogen.

      NGC 3109 has a mass of about 2.3×109 times the mass of the Sun, of which 20% is in the form of neutral hydrogen. It is oriented edge-on from our point of view, and may contain a disk and a halo. The disk appears to be composed of stars of all ages, whereas the halo contains only very old and metal-poor stars. NGC 3109 does not appear to possess a galactic nucleus.

      From measurements of the neutral atomic hydrogen in the galaxy, it has been found that the disk of NGC 3109 is warped. The warp has the same radial velocity as gas in the Antlia Dwarf galaxy, indicating that the two galaxies had a close encounter approximately one billion years ago

      RA: 10h 03m 07.5s
      DEC: -26° 09’ 43"
      Size: 40.1 x 27 arcmin
      Orientation: Up is 134 degrees E of N
      Location: Hydra
      Distance: 4.3 Mly
      Magnitude: 10.4

      Acquisition January 2021
      Total acquisition time of 29.3 hours.

      Technical Details
      Data acquisition: Martin PUGH
      Processing: Nicolas ROLLAND
      Location: El Sauce Observatory, Rio Hurtado, Chile
      Location:
      L 22 x 1200 sec
      R 15 x 1200 sec
      G 15 x 1200 sec
      B 15 x 1200 sec
      Ha 14 x 1800 sec
      Optics: Planewave 17“ CDK @ F6.8
      Mount: Paramount ME
      CCD: SBIG STXL-11002 (AOX)
      Pre Processing: CCDstack & Pixinsight
      Post Processing: Photoshop CC

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      The Giant Blue Stars of NGC 3109, 



    
        

            Nicolas ROLLAND