INTERNATIONAL DARK-‐SKY ASSOCIATION 3223 N First Ave - Tucson Arizona[removed][removed]www.darksky.org TO P RESERVE A ND P ROTECT T HE N IGHTTIME E NVIRONMENT - Lighting Association - Document - PDFSEARCH.IO

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Date: 2013-05-31 14:11:08 Planetary science Light sources Skyglow Stage lighting Bortle Dark-Sky Scale Light-emitting diode 243 Ida International Dark-Sky Association Light pollution Lighting Light		INTERNATIONAL DARK-‐SKY ASSOCIATION 3223 N First Ave - Tucson Arizona[removed][removed]www.darksky.org TO P RESERVE A ND P ROTECT T HE N IGHTTIME E NVIRONMENT Add to Reading List Source URL: www.darksky.org Download Document from Source Website File Size: 458,24 KB Share Document on Facebook

	Light pollution is the upward spill of light from street lights, business lighting and house lights, and it is lost into the atmosphere. 1.The image below shows light pollution over the Earth. Credit: NASA, NOAA NGDC, Su DocID: 152fI - View Document
	Table 2.1: The Bortle dark-sky scale. Class 1 (Excellent) NELM >7.6 DocID: 11RSS - View Document
	INTERNATIONAL DARK-‐SKY ASSOCIATION 3223 N First Ave - Tucson Arizona[removed][removed]www.darksky.org TO P RESERVE A ND P ROTECT T HE N IGHTTIME E NVIRONMENT DocID: IHTC - View Document
	News Release Media Contacts: Rob McCorkle, TPWD, ([removed]or [removed] John Barentine, International Dark-Sky Assn[removed]or [removed] August 6, 2014 Two Texas Parks & Wildlife DocID: DbAG - View Document
	INTERNATIONAL DARK-‐SKY ASSOCIATION 3223 N First Ave - Tucson Arizona[removed][removed]www.darksky.org TO P RESERVE A ND P ROTECT T HE N IGHTTIME E NVIRONMENT DocID: wsuN - View Document