Celestial hemisphere:  Northern  ·  Constellation: Cancer (Cnc)

Image of the day 10/10/2018

Getting plate-solving status, please wait...
    Abell 31, 



    
        

            Casey Good
    Abell 31
    Powered byPixInsight

    Image of the day 10/10/2018

    Getting plate-solving status, please wait...
      Abell 31, 



    
        

            Casey Good
      Abell 31
      Powered byPixInsight

      Acquisition details

      Dates:
      Sept. 26, 2018
      Frames:
      B: 12×300(1h) bin 1×1
      G: 12×300(1h) bin 1×1
      Ha: 18×1200(6h) bin 1×1
      O3: 24×1200(8h) bin 1×1
      R: 12×299(59′ 48″) bin 1×1
      Integration:
      16h 59′ 48″
      Avg. Moon age:
      16.10 days
      Avg. Moon phase:
      98.01%

      Basic astrometry details

      Astrometry.net job: 2270619

      RA center: 08h54m10s.8

      DEC center: +08°5512

      Pixel scale: 2.075 arcsec/pixel

      Orientation: 181.235 degrees

      Field radius: 1.276 degrees

      Resolution: 3114x3148

      File size: 2.0 MB

      Data source: Amateur hosting facility

      Remote source: DeepSkyWest

      Description

      Abell 31 is an ancient planetary nebula in the constellation of Cancer. It’s estimated to be about 2,000 light years away, and very large for a planetary nebula; almost as large as the better known helix nebula. Although large, it is extremely faint, requiring long exposure to capture. It also has a an interesting ‘X’ structure in the middle of it.

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      Abell 31, 



    
        

            Casey Good