                        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 August 3

                              Glory and Fog Bow
      Image and Video Credit & Copyright: Cem Özkeser and Yasin İlcebay

   Explanation: On a road trip up Mount Uludağ in Bursa province, Turkey
   these motorcyclists found themselves above low clouds and fog in late
   June. With the bright Sun directly behind them, the view down the side
   of the great mountain revealed a beautiful, atmospheric glory and fog
   bow. Known to some as the heiligenschein or the Specter of the Brocken,
   a glory can also sometimes be seen from airplanes or even high
   buildings. It often appears to be a dark giant surrounded by a bright
   halo. Of course the dark giant is just the shadow of the observer (90MB
   video) cast opposite the Sun. The clouds and fog are composed of very
   small water droplets, smaller than rain drops, that refract and reflect
   sunlight to create the glory's colorful halo and this more extensive
   fog bow.

                   Tomorrow's picture: Here comes the Sun
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       Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
            NASA Official: Amber Straughn Specific rights apply.
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                           NASA Science Activation
                             & Michigan Tech. U.

