Celestial hemisphere:  Northern  ·  Constellation: Draco (Dra)  ·  Contains:  IC 4677  ·  NGC 6543  ·  NGC 6552  ·  PK096+29.1
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Cat's Eye Nebula NGC6543 HaOiiiRGB, Göran Nilsson
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Cat's Eye Nebula NGC6543 HaOiiiRGB

Getting plate-solving status, please wait...
Cat's Eye Nebula NGC6543 HaOiiiRGB, Göran Nilsson
Powered byPixInsight

Cat's Eye Nebula NGC6543 HaOiiiRGB

Equipment

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Acquisition details

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Description

Surprisingly it stayed clear all night last night so I got almost 14 hours from my dual Esprit rig on this enigmatic planetary nebula. There was a full moon of course but I still took the chance of collecting some RGB with the Esprit 100 and ASI071. I only expected that I at best could use it for star colour but the data turned out to be virtually without gradients. It probably helped that the scope was pointing away from the moon. I also decided to go for rather short subs so I ended up waiting for my computer to stack 263 x 90s of RGB data. On the Esprit 150 the ASI 1600MM was collecting 2 hours of Ha (Baader 3.5 nm) and 5 hours of Oiii, (Baader 8.5 nm) yielding another 200 or so subs. I also shot some 10s and 30s subs to save the very bright core of this nebula - the actual eye.

Comments

Revisions

  • Cat's Eye Nebula NGC6543 HaOiiiRGB, Göran Nilsson
    Original
  • Cat's Eye Nebula NGC6543 HaOiiiRGB, Göran Nilsson
    B
  • Cat's Eye Nebula NGC6543 HaOiiiRGB, Göran Nilsson
    C
  • Cat's Eye Nebula NGC6543 HaOiiiRGB, Göran Nilsson
    D
  • Cat's Eye Nebula NGC6543 HaOiiiRGB, Göran Nilsson
    E
  • Cat's Eye Nebula NGC6543 HaOiiiRGB, Göran Nilsson
    F
  • Final
    Cat's Eye Nebula NGC6543 HaOiiiRGB, Göran Nilsson
    G

B

Description: Reprocessed the data for the core

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C

Description: Curve adjusments

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F

Description: slightly brighter sky

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Sky plot

Sky plot

Histogram

Cat's Eye Nebula NGC6543 HaOiiiRGB, Göran Nilsson