Astronomy

Astronomy Picture of the Week – The Colorful Demise of a Sun-Like Star

This image, taken by the Hubble Space Telescope, shows the colorful demise of a Sun-like star. The star is ending its life by casting off its outer layers of gas, which formed a cocoon around the star’s remaining core. Ultraviolet light from the dying star makes the material glow. The burned-out star, called a white dwarf, is the white dot in the center. It is one of the hottest known white dwarfs, with a surface temperature of nearly 200,000 degrees Celsius. The nebula is called NGC 2440 and lies about 4,000 light-years from Earth in the direction of the constellation Puppis.

NGC 2440 nebulaImage credit: NASA, ESA, and K. Noll (STScI)

Paul Tomaszewski is the founder of CosmoBC.com and CosmoDez.com. He enjoys programming and writing on topics such as technology, business, astronomy, and many more. He also has a personal blog called PaulTomBlog.com.

One Comment

  • Steve

    That is a fantastic picture. I’m always impressed by the clarity of images that the Hubble has given us over the years. I wonder if our own Sun will produce something as beautiful.

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