Hemisphere:  Northern  ·  Constellation: Perseus (Per)  ·  Contains:  Double cluster  ·  NGC 869  ·  NGC 884  ·  The star 7Per

Image of the day 12/11/2017

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    Double Cluster in Perseus (with Ha) (NGC 884 & NGC 869), 



    
        

            Mike Oates
    Double Cluster in Perseus (with Ha) (NGC 884 & NGC 869)
    Powered byPixInsight

    Double Cluster in Perseus (with Ha) (NGC 884 & NGC 869)

    Image of the day 12/11/2017

    Getting plate-solving status, please wait...
      Double Cluster in Perseus (with Ha) (NGC 884 & NGC 869), 



    
        

            Mike Oates
      Double Cluster in Perseus (with Ha) (NGC 884 & NGC 869)
      Powered byPixInsight

      Double Cluster in Perseus (with Ha) (NGC 884 & NGC 869)

      Technical card

      Imaging telescopes or lenses: Takahashi FSQ-106 ED

      Imaging cameras: Starlight Xpress SX-814 Trius Monochrome CCD

      Mounts: Sky-Watcher EZ-EQ6 GT

      Guiding cameras: Starlight-XPress Lodestar Autoguider

      Software: Sequence Generator Pro  ·  Photoshop CS6  ·  PIXINSIGHT 1.8

      Filters: Ha 3nm  ·  Red  ·  Green  ·  Blue

      Accessory: Lakeside Astro Motor Focus System  ·  Starlight Xpress SX 'Maxi wheel'  ·  Starlight Instruments FTF3545B-A Focuser


      Dates:Nov. 18, 2017

      Frames:
      Blue: 18x60" (18') bin 1x1
      Green: 18x60" (18') bin 1x1
      Ha 3nm: 40x1800" (20h) bin 1x1
      Red: 15x60" (15') bin 1x1

      Integration: 20h 51'

      Avg. Moon age: 0.01 days

      Avg. Moon phase: 0.00%

      Mean SQM: 18.50


      Basic astrometry details

      Astrometry.net job: 1854031

      RA center: 2h 20' 23"

      DEC center: +57° 8' 20"

      Pixel scale: 1.435 arcsec/pixel

      Orientation: 0.123 degrees

      Field radius: 0.869 degrees


      Resolution: 3373x2762

      Locations: The Hills Observatory, Manchester, United Kingdom

      Data source: Backyard

      Description

      Initially a very quick image, all 60sec subs taken on one night (26 Aug 2017). Processed in PixInsight using the new PhotometricColorCalibration (PCC) process. Then finished off in PhotoShop.

      This is another in my series of star clusters showing Ha regions not normally seen. This is a basic RGB image taken in about an hour. Then another 20 hours of Ha data taken as 40 x 1800s subs bin 1x1. The Ha is then added as a tonemap, (i.e. stars removed)

      This Ha nebula is extremely faint requiring lots of integration.

      The other cluster images with Ha I have published here on Astrobin are NGC 7789 & M39.

      Comments

      Revisions

        Double Cluster in Perseus (with Ha) (NGC 884 & NGC 869), 



    
        

            Mike Oates
        Original
      • Final
        Double Cluster in Perseus (with Ha) (NGC 884 & NGC 869), 



    
        

            Mike Oates
        B

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      Double Cluster in Perseus (with Ha) (NGC 884 & NGC 869), 



    
        

            Mike Oates