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Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
2007 February 15
explanation: Planetary nebula NGC 2440 has an intriguing bow-tie shape in this stunning view from space. The nebula is composed of material cast off by a dying sun-like star as it enters its white dwarf phase of evolution. Details of remarkably complex structures are revealed within NGC 2440, including dense ridges of material swept back from the nebula's central star. Near the center of the view, the star itself is one of the hottest known, with a surface temperature of about 200,000 kelvins. About 4,000 light-years from planet Earth toward the nautical constellation Puppis, the nebula spans over a light-year and is energized by ultraviolet light from the central star. The false-color image was recorded earlier this month using the Hubble's Wide-Field Planetary Camera 2(WFPC2), demonstrating still impressive imaging capabilities following the failure of the Advanced Camera for Surveys.
Originally posted by geek101
stunning photo...thanks for the link.
I love looking at photos like these, but it does make my head hurt when i start realising that each point of light is a star which in turn might have its own planets....amazing...thanks
originally posted by KrOnOs:
It really sucks that space is so huge and these galaxies and solar systems have to be so far apart lol
Originally posted by KilgoreTrout
Just to say thanks Geek101 - fabulous link to add to Favourites.
Who needs art, when you can look at those all day.
Originally posted by darkblueskyAnybody else notice that someone is flipin' us a huge cosmic bird in the upper left of this pic?
Originally posted by geek101
is that for real?
wow...that is amazing. What is that part of? I have never seen that one before.