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The Infrared Helix (Expanded View) October 21, 2007

Posted by jtintle in Deep Space, Space Fotos.
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Credit:

NASA/JPL-Caltech/ J. Hora (Harvard-Smithsonian CfA)

Description:

The Helix Nebula, which is composed of gaseous shells and disks puffed out by a dying sunlike star, exhibits complex structure on the smallest visible scales. In this new image from NASA’s Spitzer Space Telescope, infrared light at wavelengths of 3.2, 4.5, and 8.0 microns has been colored blue, green, and red (respectively). The “cometary knots” show blue-green heads due to excitation of their molecular material from shocks or ultraviolet radiation. The tails of the cometary knots appear redder due to being shielded from the central star’s ultraviolet radiation and wind by the heads of the knots.

Comments

1. Cyndy - October 22, 2007

Tilt your head just right and it kind of looks like an eyeball. Which kind of creeps me out to be honest.

And hello thar, been awhile since I frequented your blog, but nevertheless hullo!!


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