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Light Pollution: How Many Stars ...?
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Observing the stars is becoming more and more diffucult due to the increasing sky-brightening caused by artificial lights. But not only astronomers notice the bright night sky. Many people only know the starry sky from their vacations. Bad ligthing is a waste of energy, is a safety and security risk du to glare and endangeres nocturnal animals.

A unique experiment!

Its goal is the worldwide determination of the present night sky visibility conditions based on simple astronomical observations that can be done with the naked eye and within minutes. The success of the experiment depends on obtaining as many observations as possible from as many locations as possible: that means your contribution!

 

How to help: www.sternhell.at

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April 2017
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