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Contains:  IC 4677, NGC 6543
Getting plate-solving status, please wait...
NGC6543 (The Cat’s Eye Nebula), 


            Randal Healey
NGC6543 (The Cat’s Eye Nebula)
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NGC6543 (The Cat’s Eye Nebula)

Technical card

Dates:May 14, 2019May 15, 2019May 16, 2019May 17, 2019

Astrodon BLUE 36mm - Gen2 E-Series Tru-Balance: 17x300" -10C bin 1x1
Astrodon GREEN 36mm - Gen2 E-Series Tru-Balance: 17x300" -10C bin 1x1
Astrodon HA 36mm - 5nm: 116x900" -10C bin 1x1
Astrodon LUM 36mm - Gen2 E -Series Tru-Balance: 25x180" -10C bin 1x1
Astrodon Olll 36mm - 3nm: 17x900" -10C bin 1x1
Astrodon RED 36mm - Gen2 E-Series Tru-Balance: 19x300" -10C bin 1x1

Integration: 38.9 hours

Darks: ~50

Flats: ~50

Bias: ~100

Avg. Moon age: 11.68 days

Avg. Moon phase: 88.31%

Basic astrometry details job: 3138388

RA center: 17h 58' 32"

DEC center: +66° 37' 48"

Pixel scale: 0.402 arcsec/pixel

Orientation: 5.658 degrees

Field radius: 0.246 degrees

Resolution: 3047x3182

Data source: Own remote observatory


The Cat’s Eye Nebula is a famous planetary nebula located in the northern constellation Draco. The nebula’s designation in the New General Catalogue is NGC 6543.

The Cat’s Eye is one of the most structurally complex nebulae known. It was formed around 1,000 years ago when a hot, bright central star expelled its outer envelope. It is sometimes also known as the Sunflower Nebula or the Snail Nebula. It lies at a distance of 3,300 light years from Earth.

The Cat’s Eye Nebula is easy to observe from northern latitudes as it is located almost exactly in the direction of the North Ecliptic Pole. The nebula appears as a diffuse blue-green disk crossed by an s-shaped brown curve, with an intricate circular structure at the inner region. The nebula’s core has an apparent size of 20” and a high surface brightness.



Randal Healey
License: None (All rights reserved)


  • NGC6543 (The Cat’s Eye Nebula), 


            Randal Healey
  • Final
    NGC6543 (The Cat’s Eye Nebula), 


            Randal Healey

Sky plot

Sky plot


NGC6543 (The Cat’s Eye Nebula), 


            Randal Healey