Hemisphere:  Northern  ·  Constellation: Hercules (Her)  ·  Contains:  IC 1178  ·  IC 1181  ·  IC 1182  ·  IC 1185  ·  IC1170  ·  IC1172  ·  IC1176  ·  IC1178  ·  IC1179  ·  IC1181  ·  IC1182  ·  IC1183  ·  IC1184  ·  IC1185  ·  NGC 6039  ·  NGC 6040  ·  NGC 6041  ·  NGC 6043  ·  NGC 6044  ·  NGC 6045  ·  NGC 6047  ·  NGC 6050  ·  NGC 6054  ·  NGC 6056  ·  NGC6040  ·  NGC6041  ·  NGC6042  ·  NGC6043  ·  NGC6044  ·  NGC6045  ·  And 4 more.

Image of the day 06/13/2020

Getting plate-solving status, please wait...
    The Hercules Cluster of Galaxies (Abell 2151), 



    
        

            KuriousGeorge
    Powered byPixInsight

    The Hercules Cluster of Galaxies (Abell 2151)

    Image of the day 06/13/2020

    Getting plate-solving status, please wait...
      The Hercules Cluster of Galaxies (Abell 2151), 



    
        

            KuriousGeorge
      Powered byPixInsight

      The Hercules Cluster of Galaxies (Abell 2151)

      Imaging telescopes or lenses: Planewave CDK24

      Imaging cameras: FLI Proline 16803

      Mounts: Planewave L600

      Guiding cameras: Starlight Xpress Ultrastar

      Focal reducers: None

      Software: Planewave PWI3  ·  Planewave PWI4  ·  PixInsight 1.8  ·  Sequence Generator Pro  ·  Photoshop CS3  ·  PHD Guiding 2  ·  CCDWare CCD Inspector  ·  Maxim DL6

      Filters: Astrodon 50mm B  ·  Astrodon 50mm R  ·  Astrodon 50mm L  ·  Astrodon 50 mm G

      Accessory: FLI CFW-5-7  ·  Astrodon Monster MOAG  ·  Hedrick Focuser  ·  Planewave Delta-T  ·  Planewave EFA


      Dates:May 23, 2020May 25, 2020May 26, 2020

      Frames:
      Astrodon 50 mm G: 12x900" (3h) -30C bin 1x1
      Astrodon 50mm B: 12x900" (3h) -30C bin 1x1
      Astrodon 50mm L: 21x900" (5h 15') -30C bin 1x1
      Astrodon 50mm R: 12x900" (3h) -30C bin 1x1

      Integration: 14h 15'

      Darks: ~20

      Flats: ~80

      Flat darks: ~80

      Bias: ~20

      Avg. Moon age: 2.33 days

      Avg. Moon phase: 7.50%

      Mean SQM: 21.50

      Mean FWHM: 2.00


      Astrometry.net job: 3569533

      RA center: 16h 5' 9"

      DEC center: +17° 45' 31"

      Pixel scale: 0.234 arcsec/pixel

      Orientation: -177.995 degrees

      Field radius: 0.330 degrees


      Resolution: 6828x7536

      Locations: KG Observatory, Julian, CA, United States

      Data source: Backyard

      Description

      I first attempted this galaxy cluster 2 years ago when still dialing in the 24"...

      1st attempt in 2018

      ... so I thought I'd try again with things starting to settle down.

      Skies were very dark (21.5 SQM) and steady (under 2" FWHM), so color capture was much better than in 2018.

      2x drizzle was used to help extract detail in the very smallest galaxies.

      "The Hercules Cluster (Abell 2151) is a cluster of about 200 galaxies some 500 million light-years distant in the constellation Hercules. It is rich in spiral galaxies and shows many interacting galaxies. The cluster is part of the larger Hercules Supercluster, which is itself part of the much larger Great Wall super-structure."

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      The Hercules Cluster of Galaxies (Abell 2151), 



    
        

            KuriousGeorge