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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.   
      
                                  2023 February 8   
      A red oval and textured nebula is seen surrounded by a faint blue glow.   
         A bright star is visible in the center, and many faint stars are   
      visible in the background. Please see the explanation for more detailed   
                                   information.   
      
                         Stellar Wind-Shaped Nebula RCW 58   
         Image Credit & Copyright: Mike Selby & Mark Hanson; Text: Natalia   
                             Lewandowska (SUNY Oswego)   
      
      Explanation: Imagine traveling to a star about 100 times as massive as   
      our Sun, a million times more luminous, and with 30 times the surface   
      temperature. Such stars exist, and some are known as Wolf Rayet (WR)   
      stars, named after French astronomers Charles Wolf and Georges Rayet.   
      The central star in this image is WR 40 which is located toward the   
      constellation of Carina. Stars like WR 40 live fast and die young in   
      comparison with the Sun. They quickly exhaust their core hydrogen   
      supply, move on to fusing heavier core elements, and expand while   
      ejecting their outer layers via high stellar winds. In this case, the   
      central star WR 40 ejects the atmosphere at a speed of nearly 100   
      kilometers per second, and these outer layers have become the expanding   
      oval-shaped nebula RCW 58.   
      
                     Almost Hyperspace: Random APOD Generator   
                          Tomorrow's picture: open space   
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