Learn

      • Blog
      • Academy
      • About us
      • Forum

      Legal

      • Privacy Policy
      • Cookie Policy
      • Terms & Conditions

      Pricing

      • Plans

      Tutorials

      • All tutorials
      • Our tutors
      • Webinars

      Follow us

      • Facebook
      • Instagram
      Cat's Eye Nebula
      Wallpaper author:
      Pranay Kanwar

      18 Oct 2022

      Cat's Eye Nebula

      Cat's eye nebula, a.k.a NGC 6543, and Cadwell 6. A planetary nebula in Draco ~ 3000 ly away with a magnitude of 8.1 and high surface brightness. It was the first planetary nebula whose spectrum demonstrated that planetary nebulae are gaseous in nature and not stellar. Structurally a very complex nebula, the mechanisms that have given rise to its morphology are not well understood yet.

      HSO 13h 20m (24:28:28 x 600s) false-color image from SPA-2 an Officina Stellare 700 RC telescope, with FLI PL16803 camera and Astrodon LRGB 2GEN filters on an Officina Stellare equatorial fork mount with absolute encoders and direct drives. Situated in Oria, Spain. Part of telescope.live telescope network. Taken on multiple dates March 2021 - June 2022.

      Processed in PixInsight. Color mapping was done using Alex Woronow's Narrowband Assistant script. Most of the bright core was unresolvable with 600s exposures; probably, short exposures would have helped.

      Dataset from which the image was processed

      NGC 6543

      4 credit

      Open
      Telescope Live
      SPA-2-CCD
      • Type of target
        ............................................................................................................................
        Planetary Nebula
      • Camera
        ............................................................................................................................
        FLI PL16803
      • Target coordinates
        ............................................................................................................................
        RA 269.6392 Dec 66.633
      • Hemisphere
        ............................................................................................................................
        Northern
      • Telescope location
        ............................................................................................................................
        Spain
      • Transient event
        ............................................................................................................................
        No
      • Observed on
        ............................................................................................................................
        29 May 2020 - 12 Jun 2022
      Filter
      Avg Exp (s)
      Total Exposure
      Subframes
      Luminance308m16
      Red154m16
      Green154m16
      Blue164m15
      Halpha15206h20m15

      Cat's Eye Nebula