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Astronomy Picture of the Day -- Halo of the Cat's Eye
| June 01, 2014
| (see photo credit)
Posted on 06/01/2014 12:08:32 PM PDT by SunkenCiv
Explanation: 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 extended emission from the nebula. 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.
(Excerpt) Read more at 126.96.36.199 ...
TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: 49byebyes; apod; astronomy; canaryislands; ngc6543; science
[Credit & Copyright: R. Corradi (Isaac Newton Group), Nordic Optical Telescope]
posted on 06/01/2014 12:08:32 PM PDT
To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; steelyourfaith; Mmogamer; dayglored; ...
posted on 06/01/2014 12:11:00 PM PDT
posted on 06/01/2014 12:12:39 PM PDT
posted on 06/01/2014 12:17:29 PM PDT
(Try my coffee, first one's free..... Even robots will kill for it!)
FReepathon day 62, Month #3.
Don't let the Left win!
Less than $3k to go!!
posted on 06/01/2014 12:39:41 PM PDT
(May we always be happy and may our enemies always know it. - Sarah Palin, 10-18-2010)
I hope it's not really one of this jerk's eyes!
posted on 06/01/2014 12:43:01 PM PDT
(RED=COMMUNIST, NOT REPUBLICAN)
17.5 trillion miles across...!!!
posted on 06/01/2014 1:06:10 PM PDT
(Liberals see what they believe; Conservatives believe what they see.)
So that is what Ceiling Cat looks like.
posted on 06/01/2014 1:40:31 PM PDT
posted on 06/01/2014 1:55:00 PM PDT
by left that other site
(You shall know the Truth, and The Truth Shall Set You Free.)
It looks as if there are discreet rings around the star as if it were pulsating as well.
Wonderful image. Thank you, Sir.
posted on 06/02/2014 4:54:07 PM PDT
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