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   CHRS: LATIN-1 2   
                           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 28   
      A picture of the remnant pillars of Poseiden is shown, an ancient Greek   
      Temple. In the middle of the ruins, far in the distance, is a crescent   
          Moon. Please see the explanation for more detailed information.   
      
                         Crescent Moon Beyond Greek Temple   
                     Image Credit & Copyright: Elias Chasiotis   
      
      Explanation: Why is a thin crescent moon never seen far from a horizon?   
      Because the only geometry that gives a thin crescent lunar phase occurs   
      when the Moon appears close to the Sun in the sky. The crescent is not   
      caused by the shadow of the Earth, but by seeing only a small part of   
      the Moon directly illuminated by the Sun. Moreover, the thickest part   
      of the crescent always occurs in the direction of the Sun. In the   
      evening, a thin crescent Moon will set shortly after the Sun and not be   
      seen for the rest of the night. Alternatively, in the morning, a   
      crescent Moon will rise shortly before the Sun after not being seen for   
      most of the night. Pictured two weeks ago, a crescent moon was captured   
      near the horizon, just before sunrise, far behind remnants of the   
      ancient Temple of Poseidon in Greece.   
      
                         Tomorrow's picture: flaming comet   
        __________________________________________________________________   
      
          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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