MSGID: 1:153/757.0 a36cc78c   
   TZUTC: -0800   
   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.   
      
                                 2025 December 15   
       A picturesque winter landscape is seen before a dark but busy sky. A   
        stream and a house are visible in the foreground, while snow-capped   
       mountains are seen on the far horizon. In the sky are many stars and   
         many streaks caused by meteors. Also some red gaseous nebulas are   
         visible in the sky. Please see the explanation for more detailed   
                                   information.   
      
                     Gemini Meteors over Snow Capped Mountains   
                     Image Credit & Copyright: Tom+í+í Slovinsk+'   
      
      Explanation: Where are all of these meteors coming from? In terms of   
      direction on the sky, the pointed answer is the constellation of   
      Gemini. That is why the major meteor shower in December is known as the   
      Geminids -- because shower meteors all appear to come from a radiant   
      toward Gemini. Three dimensionally, however, sand-sized debris expelled   
      from the unusual asteroid 3200 Phaethon follows a well-defined orbit   
      about our Sun, and the part of the orbit that approaches Earth is   
      superposed in front of the constellation of Gemini. Therefore, when   
      Earth crosses this orbit, the radiant point of falling debris appears   
      in Gemini. Featured here is a composite of many images taken over the   
      past few days through dark skies from Slovakia and capturing the   
      snow-covered peaks of the Belianske Tatra mountains Numerous bright   
      meteor streaks from the Geminids meteor shower are visible. Orion is   
      visible above the horizon, while the bright star nearest the radiant is   
      Castor.   
      
                   APOD Review: RJN's Night Sky Network Lecture   
                         Tomorrow's picture: tree sprites   
        __________________________________________________________________   
      
          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
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                                & Michigan Tech. U.   
      
   --- BBBS/Li6 v4.10 Toy-7   
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