Astronomical Calendar: 2015 January

 Photograph of red, green, and blue-violet lasers. The United Nations has declared 2015 the International Year of Light and Light-Based Technologies (IYL 2015), to raise awareness of the achievements of light science and its applications, and its importance to humanity.
More information: http://en.wikipedia.org/wiki/International_Year_of_Light
(Image Source: Wikipedia.org )

Astronomical Calendar for 2015 January:

Link >>> http://buhlplanetarium4.tripod.com/astrocalendar/2015.html#jan

The current month's Astronomical Calendar can also be found on the cover page of the History of The Buhl Planetarium and Institute of Popular Science, Pittsburgh web site at this link:

Link >>> http://buhlplanetarium.tripod.com/#astrocal 

Source: Friends of the Zeiss.

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gaw

Glenn A. Walsh, Project Director,
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* Astronomer, Educator, Optician John A. Brashear:
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