Astronomy Picture of the Day ·
W5: Pillars of Star Formation
The Astronomy Picture of the Day for November 20, 2011 is “W5: Pillars of Star Formation,” an image. The picture is copyrighted by its creator (Image Credit & Copyright: Lori Allen, Xavier Koenig ( Harvard-Smithsonian CfA ) et al. , JPL-Caltech , NASA). The original explanation runs about 179 words.
From the explanation
“How do stars form? A study of star forming region W5 by the sun-orbiting Spitzer Space Telescope provides clear clues by recording that massive stars near the center of empty cavities are older than stars near the edges.”
— APOD editors, November 20, 2011
Read the full explanation on science.nasa.gov
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At a glance
- Date
- November 20, 2011
- Type
- Image
- Credit
- Credit: Image Credit & Copyright: Lori Allen, Xavier Koenig ( Harvard-Smithsonian CfA ) et al. , JPL-Caltech , NASA
- Copyright
- Copyrighted by the credited creator. Ask the copyright holder before reusing it.
- Explanation length
- About 179 words