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                           Astronomy Picture of the Day   
      
       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.   
      
                                  2022 January 13   
      
                           Supernova Remnant Simeis 147   
                       Image Credit & Copyright: Jason Dain   
      
      Explanation: It's easy to get lost following the intricate, looping,   
      twisting filaments in this detailed image of supernova remnant Simeis   
      147. Also cataloged as Sharpless 2-240 it goes by the popular nickname,   
      the Spaghetti Nebula. Seen toward the boundary of the constellations   
      Taurus and Auriga, it covers nearly 3 degrees or 6 full moons on the   
      sky. That's about 150 light-years at the stellar debris cloud's   
      estimated distance of 3,000 light-years. This composite includes image   
      data taken through narrow-band filters where reddish emission from   
      ionized hydrogen atoms and doubly ionized oxygen atoms in faint   
      blue-green hues trace the shocked, glowing gas. The 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 the   
      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.   
      
                        Tomorrow's picture: pixels in space   
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          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
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