Astronomical Calendar: 2014 November

Link >>> http://spacewatchtower.blogspot.com/2014/11/astronomical-calendar-2014-november.html

2014: 75th Year of Pittsburgh's Buhl Planetarium


 
 
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SpaceWatchtower: Astronomical Calendar: 2014 November
Pittsburgh's Allegheny Observatory provided the precise time signals, via telegraph, which permitted the establishment of five North American standard time zones on...
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Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://buhlplanetarium.tripod.com/fotz/ >
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SpaceWatchtower Blog: < http://spacewatchtower.blogspot.com/ >

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