Hemisphere:  Northern  ·  Constellation: Draco (Dra)  ·  Contains:  NGC 6552
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NGC 6543 • Cat's Eye Nebula in HaOIIIRGB, 



    
        

            Douglas J Struble
NGC 6543 • Cat's Eye Nebula in HaOIIIRGB
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NGC 6543 • Cat's Eye Nebula in HaOIIIRGB

Getting plate-solving status, please wait...
NGC 6543 • Cat's Eye Nebula in HaOIIIRGB, 



    
        

            Douglas J Struble
NGC 6543 • Cat's Eye Nebula in HaOIIIRGB
Powered byPixInsight

NGC 6543 • Cat's Eye Nebula in HaOIIIRGB

Equipment

Imaging Telescopes Or Lenses
Explore Scientific ED165CF FPL-53
Imaging Cameras
ZWO ASI1600MM-PRO
Mounts
Astro-Physics Mach 1 GTO
Filters
Astrodon OIII 3nm · Astronomik Deep-Sky B · Astronomik Deep-Sky G · Astronomik Deep-Sky R · Astronomik Ha 6nm 1.25''
Accessories
Hotech 2" SCA Self-Centering Field Flattener · ZWO 8x 1.25" Filter Wheel (EFW) · QHYCCD PoleMaster · MoonLite CFL 2.5" Large Format Focuser
Software
PHD2 · Photoshop CS5 · PixInsight · SkySafari Pro
Guiding Telescopes Or Lenses
Orion 80mm Short Tube
Guiding Cameras
Starlight Xpress Lodestar x2

Acquisition details

Dates:
May 3, 2020 ·  May 6, 2020 ·  May 30, 2020 ·  May 31, 2020 ·  June 1, 2020 ·  June 6, 2020
Frames:
Astrodon OIII 3nm: 135x60" (2h 15') (gain: 0.00) -20°C bin 1x1
Astrodon OIII 3nm: 315x120" (10h 30') (gain: 200.00) -20°C bin 1x1
Astronomik Deep-Sky B: 63x60" (1h 3') (gain: 0.00) -20°C bin 1x1
Astronomik Deep-Sky G: 60x60" (1h) (gain: 0.00) -20°C bin 1x1
Astronomik Deep-Sky R: 60x60" (1h) (gain: 0.00) -20°C bin 1x1
Astronomik Ha 6nm 1.25'': 137x60" (2h 17') (gain: 0.00) -20°C
Astronomik Ha 6nm 1.25'': 359x120" (11h 58') (gain: 200.00) -20°C bin 1x1
Integration:
30h 3'
Darks:
50
Flats:
50
Bias:
250
Avg. Moon age:
11.00 days
Avg. Moon phase:
78.66%
Bortle Dark-Sky Scale:
8.00

Basic astrometry details

Astrometry.net job: 3589631

RA center: 17h58m55s.9

DEC center: +66°3708

Pixel scale: 0.649 arcsec/pixel

Orientation: 320.830 degrees

Field radius: 0.240 degrees

Resolution: 2146x1583

Locations: Backyard White Zone Observatory, Taylor, MI, Michigan, United States

Data source: Backyard

Description

This proved to be a major challenge. The core is so bright and had to layer in three different sets of data in Ha and OIII at different exposures. I then added in RGB stars.

The Cat's Eye Nebula (also known as NGC 6543 and Caldwell 6) is a planetary nebula in the northern constellation of Draco, discovered by William Herschel on February 15, 1786. It was the first planetary nebula whose spectrum was investigated by the English amateur astronomer William Huggins, demonstrating that planetary nebulae were gaseous and not stellar in nature. Structurally, the object has had high-resolution images by the Hubble Space Telescope revealing knots, jets, bubbles and complex arcs, being illuminated by the central hot planetary nebula nucleus (PNN). It is a well-studied object that has been observed from radio to X-ray wavelengths.

Comments

Revisions

  • Final
    NGC 6543 • Cat's Eye Nebula in HaOIIIRGB, 



    
        

            Douglas J Struble
    Original
    NGC 6543 • Cat's Eye Nebula in HaOIIIRGB, 



    
        

            Douglas J Struble
    E

E

Description: Featured in BBC Sky at Night Magazine September 2020

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NGC 6543 • Cat's Eye Nebula in HaOIIIRGB, 



    
        

            Douglas J Struble