View Full Version : Wallpaper: Cat's Eye Nebula

2005-Sep-10, 02:07 PM
SUMMARY: Here's a 1024x768 desktop wallpaper of the Cat's Eye Nebula (aka NGC 6543), taken by the Hubble Space Telescope. It's classified as a planetary nebula, which means that it was once a Sun-like star that ejected its outer layers into space. Astronomers think that it ejected its mass in 1,500-year pulses, creating a series of dust shells that are layered around the star like an onion. The situation changed about 1,000 years ago, when the nebula we see started forming inside the dusty shells - Hubble has watched it grow during 10 years of observations.

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