Kitt Peak National Observatory

The orange glow of light pollution from Phoenix and Casa Grande lights the skies north of the SARA 0.9 meter, left, the Spacewatch 0.9 meter, the CWRU Burrel Schmidt 0.6 meter, the Steward Observatory's Bok 2.3 meter and the KPNO Mayall 4 meter telescopes at Kitt Peak National Observatory in 2010.

November 09, 2013 5:51 pm  • 

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