DENNIS L. MAMMANA

Astronomy Writing    Lecturing    Photography


 

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― TWILIGHT ZONE ―


For an hour or so around sunset and sunrise comes a period when we on our spinning Earth cross the edge of night. These times, known as "twilight", provide sky photographers and stargazers alike with some of the most dramatic―though fleeting―light and color. 

  Click on Thumbnails to See Enlargements  ―

 

 

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(c) Dennis L. Mammana.  All rights reserved.