Luminous-Lint - for collectors and connoisseurs of fine photography
HOME  BACK>>> Subscriptions <<< | Testimonials | Login | FREE NEWSLETTER

HomeContentsVisual indexes > Unidentified photographer/creator

Unidentified photographer/creator 
Halo of the Cat's Eye 
Digital image 
R. Corradi (Isaac Newton Group), D. Goncalves (Inst. Astrofisica de Canarias) 
The Cat's Eye Nebula (NGC 6543) is one of the best known planetary nebulae in the sky. Its haunting symmetries are seen in the very central region of this stunning false-color picture, processed to reveal the enormous but extremely faint halo of gaseous material, over three light-years across, which surrounds the brighter, familiar planetary nebula. Made with data from the Nordic Optical Telescope in the Canary Islands, the composite picture shows emission from nitrogen atoms as red and oxygen atoms as green and blue shades. Planetary nebulae have long been appreciated as a final phase in the life of a sun-like star. Only much more recently however, have some planetaries been found to have halos like this one, likely formed of material shrugged off during earlier active episodes in the star's evolution. While the planetary nebula phase is thought to last for around 10,000 years, astronomers estimate the age of the outer filamentary portions of this halo to be 50,000 to 90,000 years.
This image was the "NASA - Astronomy Picture of the Day" - 2002, September 4. 

Getting around


Unidentified photographer/creator
Related online exhibitions: 
Scientific: Astronomy - The Modern Age 
PhVTitle | Lightbox | Checklist 
Scientific: Contemporary 
PhVTitle | Lightbox | Checklist 
Fragments and slideshows 
(Be patient as it takes time for larger slideshows to load.) 
Contemporary astronomy (Subscribers) 
Contemporary scientific imagery (Subscribers) 
There is so much more to explore when you subscribe. 
Social media: 

 Premium content for those who want to understand photography
Visual indexes for this image are available for subscribers.There is so much more to explore when you subscribe. 

HOME  BACK>>> Subscriptions <<< | Testimonials | Login | FREE NEWSLETTER
 Facebook LuminousLint 
 Twitter @LuminousLint