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Dark-sky preserve
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21	CherrySprPatterson4_2_13geo Add to Reading List Source URL: www.dcnr.state.pa.us Language: English - Date: 2013-07-12 07:54:17 Cherry Springs State Park Cherry Springs Airport Patterson State Park Susquehannock Trail System Lyman Run State Park Susquehannock State Forest Prouty Place State Park Dark-sky preserve Night sky Geography of Pennsylvania Pennsylvania Amateur astronomy
22	RTF Document Add to Reading List Source URL: www.dcnr.state.pa.us Language: English - Date: 2013-07-12 07:54:17 Susquehannock Trail System Patterson State Park Susquehannock State Forest Lyman Run State Park Night sky Dark-sky preserve Constellation Big Dipper International Dark-Sky Association Pennsylvania Amateur astronomy Cherry Springs State Park
23	International Dark-Sky Association The Nightscape Authority since 1988” “to preserve and protect the nighttime environment and our heritage of dark skies through quality outdoor lighting” Press Release: IDA Discou Add to Reading List Source URL: www.darksky.org Language: English - Date: 2012-09-25 05:27:25 International Dark-Sky Association Light sources Science Space Tucson Arizona Lighting Night sky Dark-sky movement Polarized light pollution Light pollution Astronomy Observational astronomy
24	International Dark-Sky Association The Nightscape Authority since 1988” “to preserve and protect the nighttime environment and our heritage of dark skies through quality outdoor lighting” Press Release: First Inte Add to Reading List Source URL: www.darksky.org Language: English - Date: 2012-09-25 05:27:25 Geography of Canada Dark-sky movement Quebec Space Science Dark-sky preserve Light pollution International Dark-Sky Association Mont-Mégantic National Park
25	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 Language: English - Date: 2013-05-31 14:14:05 Bortle Dark-Sky Scale Stage lighting Architecture Optics Electromagnetic radiation International Dark-Sky Association Dark-sky preserve Light pollution Skyglow Lighting
26	International Dark-Sky Association The Nightscape Authority since 1988” “to preserve and protect the nighttime environment and our heritage of dark skies through quality outdoor lighting” Press Release: For Add to Reading List Source URL: www.darksky.org Language: English - Date: 2012-09-25 05:27:42 Space International Dark-Sky Association Light sources Lighting 243 Ida International Year of Astronomy Natural environment Polarized light pollution Astronomy Light pollution Planetary science
27	International Dark-Sky Association The Nightscape Authority since 1988” “to preserve and protect the nighttime environment and our heritage of dark skies through quality outdoor lighting” FOR IMMEDIATE RELEASE: Add to Reading List Source URL: www.darksky.org Language: English - Date: 2012-09-25 05:27:41 Light pollution International Dark-Sky Association Tucson Arizona Light-emitting diode Philips Lumileds Lighting Company Philips Ferris Lighting Light Technology
28	International Dark-Sky Association The Nightscape Authority since 1988” “to preserve and protect the nighttime environment and our heritage of dark skies through quality outdoor lighting” Press Release: The Republ Add to Reading List Source URL: www.darksky.org Language: English - Date: 2012-09-25 05:27:26 International Dark-Sky Association Janez Podobnik Lighting Architecture National Assembly Slovenia Janez Earth Light pollution Europe Dark-sky movement
29	FOR IMMEDIATE RELEASE Eifel National Park Designated The First International Dark Sky Park In Germany TUCSON, AZ AND EIFEL NATIONAL PARK, GERMANY, 17 February 2014 – The International Dark Sky Association (IDA) announ Add to Reading List Source URL: www.darksky.org Language: English - Date: 2014-02-14 16:06:08 Observational astronomy Geography of Germany Aachen Light pollution Geography of Belgium Eifel National Park International Dark-Sky Association Ordensburg Vogelsang Dark-sky preserve Eifel States of Germany North Rhine-Westphalia
30	International Dark-Sky Association The Nightscape Authority since 1988” “to preserve and protect the nighttime environment and our heritage of dark skies through quality outdoor lighting” Press Release: Add to Reading List Source URL: www.darksky.org Language: English - Date: 2012-09-25 05:27:36 Architecture International Dark-Sky Association Dark-sky preserve Optics Electromagnetic radiation Dark-sky movement New England Light Pollution Advisory Group Light pollution Lighting Light sources

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