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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 20   
          A ball of yellow stars is seen to the right of blue-glowing gas   
       filaments. Other blue filaments and foreground stars cover the frame.   
             Please see the explanation for more detailed information.   
      
                       NGC 1850: Not Found in the Milky Way   
       Image Credit: NASA, ESA and P. Goudfrooij (STScI); Processing: M. H.   
                         .zsarat (T³rkiye Astronomi Dernegi)   
      
      Explanation: There is nothing like this ball of stars in our Milky Way   
      Galaxy. This is surprising because, at first glance, this featured   
      image by the Hubble Space Telescope suggests that star cluster NGC   
      1850's size and shape are reminiscent of the many ancient globular star   
      clusters which roam our own Milky Way Galaxy's halo. But NGC 1850's   
      stars are all too young, making it a type of star cluster with no known   
      counterpart in the Milky Way. Moreover, NGC 1850 is also a double star   
      cluster, with a second, compact cluster of stars visible here just to   
      the right of the large cluster's center. Stars in the large cluster are   
      estimated to be 50 million years young, while stars in the compact   
      cluster are younger still, with an age of about 4 million years. A mere   
      168,000 light-years distant, NGC 1850 is located near the outskirts of   
      the Large Magellanic Cloud galaxy. The glowing gas filaments across the   
      image left, like supernova remnants in our own galaxy, testify to   
      violent stellar explosions and indicate that short-lived massive stars   
      have recently been present in the region.   
      
                         Tomorrow's picture: double falls   
        __________________________________________________________________   
      
          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
               NASA Official: Phillip Newman Specific rights apply.   
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                         A service of: ASD at NASA / GSFC,   
                              NASA Science Activation   
                                & Michigan Tech. U.   
      
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