Chadwick A. Moore Visual Estimations of

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Date: 2002-04-18 15:08:05 Space Bortle Dark-Sky Scale International Dark-Sky Association Skyglow Limiting magnitude Sky brightness Apparent magnitude Naked eye Night sky Observational astronomy Astronomy Light pollution		Chadwick A. Moore Visual Estimations of Add to Reading List Source URL: www.georgewright.org Download Document from Source Website File Size: 294,91 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