Hemisphere:  Northern  ·  Constellation: Draco (Dra)  ·  Contains:  IC 4677  ·  NGC 6543
Cat's Eye Nebula, 



    
        

            Metsavainio
Cat's Eye Nebula
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Acquisition details

Dates:
Oct. 19, 2009
Frames:
30×1200(10h)
Integration:
10h
Avg. Moon age:
1.31 days
Avg. Moon phase:
1.92%

Basic astrometry details

Astrometry.net job: 93752

RA center: 17h58m40s.8

DEC center: +66°3816

Pixel scale: 0.668 arcsec/pixel

Orientation: 67.456 degrees

Field radius: 0.183 degrees

Resolution: 620x521

File size: 137.1 KB

Locations: Astro Anarchy Observatory, Oulu, Finland, Finland

Description

I have made an experimental 3D-studie out of this nebula, please, copy and paste the link bellow to see the animation:

http://astroanarchy.blogspot.fi/2013/02/3d-study-of-ngc-6543-cats-eye-nebula.html

Uh, this was difficult.

Outer shell is very dim and the core of the Nebula is so bright, balancing that is not an easy task.

I'm happy with this result!

The core of the Cat's Eye Nebula has a small angular diameter, so good seeing is needed to reveal any internal details. I managed to get some visible by using several relatively short exposures, 150s. each, for the core. Seeing varies between 3-2,2 FWHM.

There is a hint of concentric circles visible around the core, ,they are real phenomena coursed by polarized light from the nebula.

Comments

Sky plot

Sky plot

Histogram

Cat's Eye Nebula, 



    
        

            Metsavainio