Celestial hemisphere:  Northern  ·  Constellation: Coma Berenices (Com)  ·  Contains:  HD111813  ·  HD111842  ·  HD111878  ·  NGC 4712  ·  NGC 4725  ·  NGC 4747

Image of the day 04/20/2022

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    Interacting galaxies NGC 4725 and NGC 4747, xlong
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    Interacting galaxies NGC 4725 and NGC 4747

    Image of the day 04/20/2022

    Getting plate-solving status, please wait...
      Interacting galaxies NGC 4725 and NGC 4747, xlong
      Powered byPixInsight

      Interacting galaxies NGC 4725 and NGC 4747

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      Description

      From this image we can see three interesting galaxies in Coma Berenices, from left to right they are NGC4747 , ngc4725 and ngc4712.

      NGC 4725 is a barred spiral galaxy of more than 100 thousand light-years across, located about 41 million light-years away from Earth in the northern constellation of Coma Berenices (Berenice’s Hair), while it is receding from us at approximately 1206 kilometers per second.

      It is the dominant member of the Coma II Subgroup or the NGC 4725 Group (within the larger Coma-Sculptor Group), a small group of galaxies that also includes NGC 4712 (the spiral galaxy on the right side in this image), NGC 4747 (the spiral galaxy on the left side in this image), both at a distance of approximately 200 million light-years and PGC 86434, at a distance of approximately 50 million light-years. The generally accepted cause for the severe distortion of the smaller NGC 4747, and three tidal tails, is tidal interaction with the massive NGC 4725.

      This peculiar galaxy has just one spiral arm, unlike most other galaxies, including our own Milky Way, who have two or more spiral arms. This single arm is tightly wound around the core, and is made up of dust and gas illuminated by newborn stars, many bright blue star clusters and pinkish HII regions where new stars are forming, which are seen more where the arm connects to the central bar. In the center is a population of older yellow stars.

      (Information from http://annesastronomynews.com/photo-gallery-ii/galaxies-clusters/ngc-4725-by-robert-gendler/)

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        Interacting galaxies NGC 4725 and NGC 4747, xlong
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        Interacting galaxies NGC 4725 and NGC 4747, xlong
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      Interacting galaxies NGC 4725 and NGC 4747, xlong