Hemisphere:  Northern  ·  Constellation: Coma Berenices (Com)  ·  Contains:  IC 3943  ·  IC 3946  ·  IC 3949  ·  IC 4051  ·  NGC 4854  ·  NGC 4860  ·  NGC 4865  ·  NGC 4873  ·  NGC 4874  ·  NGC 4881  ·  NGC 4886  ·  NGC 4889  ·  NGC 4895  ·  NGC 4896  ·  NGC 4898  ·  NGC 4907  ·  NGC 4908  ·  NGC 4911  ·  NGC 4919  ·  NGC 4921

Image of the day 05/19/2022

Getting plate-solving status, please wait...
    Coma Cluster, (Abell 1656), 



    
        

            Firas Haki
    Coma Cluster, (Abell 1656)
    Powered byPixInsight

    Coma Cluster, (Abell 1656)

    Image of the day 05/19/2022

    Getting plate-solving status, please wait...
      Coma Cluster, (Abell 1656), 



    
        

            Firas Haki
      Coma Cluster, (Abell 1656)
      Powered byPixInsight

      Coma Cluster, (Abell 1656)

      Equipment

      Imaging Telescopes Or Lenses
      Telescope Service TS ONTC 203 mm f/5
      Imaging Cameras
      Moravian G2-8300FW Moravian G2-8300
      Mounts
      EQ6 R pro
      Filters
      Baader 36mm LRGB
      Accessories
      PrimaluceLab Sesto Senso Focuser Sesto Senso Focuser · TeleVue Paracorr Type-2
      Software
      PHD · Pixinsight
      Guiding Telescopes Or Lenses
      Telescope Service TS ONTC 203 mm f/5
      Guiding Cameras
      Starlight Xpress Lodestar X2

      Acquisition details

      Dates:
      Feb. 25, 2022
      Frames:
      364x300" (30h 20')
      Integration:
      30h 20'
      Avg. Moon age:
      23.83 days
      Avg. Moon phase:
      32.44%

      Basic astrometry details

      Astrometry.net job: 5757593

      RA center: 12h59m59s.3

      DEC center: +28°0007

      Pixel scale: 0.972 arcsec/pixel

      Orientation: 183.673 degrees

      Field radius: 0.504 degrees

      Resolution: 2452x2809

      Locations: Hollandhill Observatory, Stockhom, Sweden

      Data source: Own remote observatory

      Remote source: Non-commercial independent facility

      Description

      Coma Cluster, (Abell 1656)
      A large cluster of galaxies that contains over 1,000 identified galaxies!
      It is one of the two major clusters comprising the Coma Supercluster. It is located 321 million light years away in the constellation Coma Berenices.
      The central region is dominated by two supergiant elliptical galaxies: NGC 4874 and NGC 4889, center-right in this image, contains one of the most massive black holes known. 5,200 times more massive than the central black hole of the Milky Way.
      The diameter of the black hole's immense event horizon is about 20 to 124 billion kilometers.
      The Coma Cluster was one of the first places where astronomers observed the effect of dark matter. It is believed that about 90% of the mass of the cluster is a form of dark matter.
      The image was taken last februari, from Holland hill observatory, where my telescope lives.
      I have exposed the image for 30 hours through LRGB filters to achieve a strong signal of the cluster.
      To my delight, the lengthy exposure revealed a very interesting light. The quasar (an extremely luminous active galactic nucleus, powered by a supermassive black hole)
      QSO [HB89] 1256+280. This quasar is at a distance of ~11 billion light years! Its light started heading toward us when the universe was only 2 billion years old. It’s really fascinating that it was captured with my amateur equipment, but the image is definitely the deepest of my astrophotography to date.

      It took three weeks to collect the material and two months to process the tricky and complicated image.
      Hope you enjoy it, I certainly did.

      Comments

      Revisions

      • Final
        Coma Cluster, (Abell 1656), 



    
        

            Firas Haki
        Original
        Coma Cluster, (Abell 1656), 



    
        

            Firas Haki
        B

      B

      Title: QSO [HB89] 1256+280

      Description: Light from the edge of time.

      Uploaded: ...

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      Coma Cluster, (Abell 1656), 



    
        

            Firas Haki