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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.   
      
                                 2024 November 17   
         A starfield is dominated by light brown dust. In the middle is a   
       parabolic gas cloud opening toward the lower right. A bright star is   
      near the center at the apex of the parabolic gas cloud. Please see the   
                    explanation for more detailed information.   
      
                         LDN 1471: A Windblown Star Cavity   
        Image Credit: Hubble, NASA, ESA; Processing & License: Judy Schmidt   
      
      Explanation: What is the cause of this unusual parabolic structure?   
      This illuminated cavity, known as LDN 1471, was created by a newly   
      forming star, seen as the bright source at the peak of the parabola.   
      This protostar is experiencing a stellar outflow which is then   
      interacting with the surrounding material in the Perseus Molecular   
      Cloud, causing it to brighten. We see only one side of the cavity --   
      the other side is hidden by dark dust. The parabolic shape is caused by   
      the widening of the stellar-wind blown cavity over time. Two additional   
      structures can also be seen either side of the protostar; these are   
      known as Herbig-Haro objects, again caused by the interaction of the   
      outflow with the surrounding material. What causes the striations on   
      the cavity walls, though, remains unknown. The featured image was taken   
      by NASA and ESACÇÖs Hubble Space Telescope after an original detection by   
      the Spitzer Space Telescope.   
      
                   Explore Your Universe: Random APOD Generator   
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          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
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