Astronomical Calendar: 2017 April

A very rare color photograph from 1917 (although digitally enhanced), of a Nieuport Bi-Plane Fighter used during World War I. The United States of America entered World War I on April 6, one hundred years ago.
(Image Source: Wikipedia.org , By Paul CastelnauThe factual accuracy of this description or the file name is disputed.Reason: Attributed to Fernand Cuville by Réunion des musées nationaux [1] - Source BNF Available at http://gallica.bnf.fr/scripts/ConsultationTout.exe?E=0&O=03300083 (bad link), Public Domain, https://commons.wikimedia.org/w/index.php?curid=5967740 )

Astronomical Calendar for 2017 April: 
Link >>> http://buhlplanetarium4.tripod.com/astrocalendar/2017.html#apr

 Related Blog Post ---

"Astronomical Calendar: 2017 March." 2017 March 1.

Link >>> http://buhlplanetarium4.tripod.com/astrocalendar/2017.html#mar

     Safe Public Viewing of the Great American Solar Eclipse
                         Monday, August 21, 2017
     Mt. Lebanon Public Library, South Suburban Pittsburgh
More Info: Link >>> http://buhlplanetarium.tripod.com/archivenews/releases/poster-flyer/2017SolarEclipse-Flyer.htm

Source: Friends of the Zeiss.
              2017 April 1.

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Glenn A. Walsh, Project Director, Friends of the Zeiss: < http://buhlplanetarium.tripod.com/fotz/ >
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