Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)

Image of the day 05/24/2023

Getting plate-solving status, please wait...
    Caldwell 2 (NGC 40) & CTA 1 SNR, 



    
        

            Mathieu Guinot
    Caldwell 2 (NGC 40) & CTA 1 SNR
    Powered byPixInsight

    Caldwell 2 (NGC 40) & CTA 1 SNR

    Image of the day 05/24/2023

    Getting plate-solving status, please wait...
      Caldwell 2 (NGC 40) & CTA 1 SNR, 



    
        

            Mathieu Guinot
      Caldwell 2 (NGC 40) & CTA 1 SNR
      Powered byPixInsight

      Caldwell 2 (NGC 40) & CTA 1 SNR

      Acquisition details

      Dates:
      March 3, 2023 ·  March 4, 2023 ·  March 5, 2023 ·  March 7, 2023 ·  April 16, 2023 ·  April 19, 2023 ·  May 1, 2023 ·  May 2, 2023 ·  May 3, 2023
      Frames:
      Antlia 3.5nm Narrowband H-alpha 36 mm: 285×300(23h 45′)
      Antlia 3.5nm Narrowband Oxygen III 36 mm: 139×300(11h 35′)
      Antlia Blue 36 mm: 32×120(1h 4′)
      Antlia Green 36 mm: 31×120(1h 2′)
      Antlia Luminance 36 mm: 101×120(3h 22′)
      Antlia Red 36 mm: 33×120(1h 6′)
      Integration:
      41h 54′
      Avg. Moon age:
      15.54 days
      Avg. Moon phase:
      72.92%

      Basic astrometry details

      Astrometry.net job: 7726641

      RA center: 00h12m43s.7

      DEC center: +72°3014

      Pixel scale: 0.782 arcsec/pixel

      Orientation: 2.183 degrees

      Field radius: 0.771 degrees

      Resolution: 5927x3913

      File size: 11.8 MB

      Data source: Backyard

      Description

      Here is the planetary nebula NGC 40, or Caldwell 2 (also known as the Bow-Tie Nebula), surrounded by a part of CTA 1 (SNR G119.5 +10.2)  which is an extremely faint supernova remnant that consists of a 1.5 x 1 degree filamentary shell.
      Both of these objects are located in Cepheus constellation, but NGC 40 is approximatively 4,500 years old and at a distance of about 3.500 light-years while CTA1 is  approximatively 10000 years old and at a distance of about 5000 light years.
      NGC40's apparent size is only about 1 arc minute, but it presents interesting structures and the central star is clearly visible (crop version B).

      Comments

      Revisions

      • Final
        Caldwell 2 (NGC 40) & CTA 1 SNR, 



    
        

            Mathieu Guinot
        Original
        Caldwell 2 (NGC 40) & CTA 1 SNR, 



    
        

            Mathieu Guinot
        B

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      Caldwell 2 (NGC 40) & CTA 1 SNR, 



    
        

            Mathieu Guinot