MSGID: 1:317/3 63e6864c   
   PID: hpt/lnx 1.9.0-cur 2019-01-08   
   TID: hpt/lnx 1.9.0-cur 2019-01-08   
    EPOD - a service of USRA   
      
   The Earth Science Picture of the Day (EPOD) highlights the diverse processes   
   and phenomena which shape our planet and our lives. EPOD will collect and   
   archive photos, imagery, graphics, and artwork with short explanatory   
   captions and links exemplifying features within the Earth system. The   
   community is invited to contribute digital imagery, short captions and   
   relevant links.   
      
      
    Gegenschein Observed from La Silla, Chile   
      
      February 10, 2023   
      
      
       Gegenschein_LaSilla_11-22_bardon22   
      
      Photographer:  Zdenek Bardon   
      Summary Author:  Zdenek Bardon:  Jim Foster   
      
      During an observing session from the  ESO Observatory in Chile one   
      night this past November, in addition to various nebulae and star   
      clusters, I also captured a patch of light, at center, called the   
       Gegenschein or counterglow. Particles of dust and ice in the path   
      of Earth’s orbit around the Sun scatter sunlight both forwards and   
      backwards, depending upon their size. The  backward scattered light   
      is scattered (by smaller particles) with reduced intensity, so the   
      resulting dim glow is only visible (to the naked eye) in extremely dark   
      skies -- seen at the point in the night sky that’s opposite of the Sun   
      ( antisolar point). As with nearly all faint objects, you’ll have   
      better luck viewing it if you use  averted vision. Photo taken on   
      the night of November 27, 2022.   
      
      Photo details: Nikon D810Da camera with ZEISS Otus 1.4/55 lens; stack   
      of 27 images, each with an exposure of 60 seconds.   
      
      La Silla, Chile Coordinates: -29.2612 -70.7313   
      
      
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   Night Sky Links   
      
        *  Space Weather Live   
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        *  American Meteor Society   
        *  Arbeitskreises Meteore e.V.   
        *  Global City Lights   
        *  Heavens Above Home Page   
        *  The International Meteor Organization   
        *  Lunar and Planetary Institute   
        *  MoonConnection   
        *  NASA Eclipse Web Page   
        *  Understanding The Moon Phases   
      
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      Space Research Association.   
      
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