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NASA Astronomy Picture of the Day (February 12, 2011)

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  • mahtezcatpoc
    http://apod.nasa.gov/apod/ap110212.html It s easy to get lost following the intricate filaments in this detailed mosaic image of faint supernova remnant
    Message 1 of 379 , Feb 12, 2011
      http://apod.nasa.gov/apod/ap110212.html


      "It's easy to get lost following the intricate filaments in this detailed mosaic image of faint supernova remnant Simeis 147. Also cataloged as Sh2-240 [Sharpless 2-240] and seen towards the constellation Taurus, it covers nearly 3 degrees (6 full moons) on the sky. That corresponds to a width of 150 light-years at the stellar debris cloud's estimated distance of 3,000 light-years. The remarkable composite includes image data taken through narrow-band filters to highlight emission from hydrogen and oxygen atoms tracing regions of shocked, glowing gas. This supernova remnant has an estimated age of about 40,000 years - meaning light from the massive stellar explosion first reached Earth 40,000 years ago. But this expanding remnant is not the only aftermath. The cosmic catastrophe also left behind a spinning neutron star or pulsar, all that remains of the original star's core."


      Mark A. Holmes
    • mahtezcatpoc
      http://apod.nasa.gov/apod/ap111126.html IC 5067, the Pelican Nebula in Cygnus. Mark A. Holmes
      Message 379 of 379 , Dec 1, 2011
        http://apod.nasa.gov/apod/ap111126.html

        IC 5067, the Pelican Nebula in Cygnus.


        Mark A. Holmes
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