Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Helix Galaxy  ·  NGC 2685

Image of the day 04/26/2022

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    NGC 2685 The Helix Galaxy, 



    
        

            Peter Goodhew
    Powered byPixInsight

    NGC 2685 The Helix Galaxy

    Image of the day 04/26/2022

    Getting plate-solving status, please wait...
      NGC 2685 The Helix Galaxy, 



    
        

            Peter Goodhew
      Powered byPixInsight

      NGC 2685 The Helix Galaxy

      Acquisition details

      Frames:
      Astrodon Blue: 16×300(1h 20′) bin 1×1
      Astrodon Lum: 194×300(16h 10′) bin 1×1
      Astrodon Red: 18×300(1h 30′) bin 1×1
      Green: 17×300(1h 25′) bin 1×1
      Integration:
      20h 25′

      RA center: 08h55m35s.860

      DEC center: +58°4402.34

      Pixel scale: 0.265 arcsec/pixel

      Orientation: -9.648 degrees

      Field radius: 0.188 degrees

      WCS transformation: thin plate spline

      More info:Open 

      Resolution: 4250x2838

      File size: 997.7 KB

      Locations: e-Eye, Fregenal de la Sierra, Extramadura, Spain

      Data source: Own remote observatory

      Remote source: e-EyE Extremadura

      Description

      NGC 2685 is a very unusual galaxy in the constellation Ursa Major.
      It is a rare  polar ring galaxy - meaning it has a ring of gas, stars and dust orbiting in a plane almost perpendicular to the normal flat plane of NGC 2685. Physically it contains two separate velocity systems whose axes are perpendicular. The most popular view says that such galaxies are the result of an interaction, up to and including a complete merger, with another galaxy.
      This feature can be seen in the image as helical filaments around the central part of the galaxy.
      NGC 2685 is about 50,000 light years across, and about 42 million light years from Earth.
      Image captured on my remote dual rig at Fregenal de la Sierra in Spain between 26 March and 7 April 2022.

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      NGC 2685 The Helix Galaxy, 



    
        

            Peter Goodhew

      In these public groups

      Entre Encinas y Estrellas (e-EyE)