101. Clear Sky Clock FAQ What do the colors under the light pollution column mean? The light pollution color codes on clocklist pages are the light pollution ratings of those http://cleardarksky.com/csk/faq/2.html

Clear Sky Clock FAQ What do the colors under the "light pollution" column mean? The light pollution color codes on clock-list pages are the light pollution ratings of those sites as determined by the amazing lightpollution maps at The World Atlas of the Artificial Night Sky Brightness (used with permission). Basically white mean abysmal conditions and black means as good as you can get. Or more precisely: Color Artificial / Natural Sky Brightness Sky Brightness mags / sq arcsec Bortle Scale approx Description (Descriptions are approximate. Your sky may vary.) Gegenschein visible. Zodiacal light annoyingly bright. Rising milkyway confuses some into thinking it's dawn. Limiting magnitude 7.6 to 8.0 for people with exceptional vision. 0.01 to 0.11 21.6 to 21.5 Faint shadows cast by milkyway visible on white objects. Clouds are black holes in the sky. No light domes. The milky way has faint extentions making it 50 degrees thick. Limiting magntiude 7.1 to 7.5. 0.11 to 0.33 21.5 to 21.3 Low light domes (10 to 15 degrees) on horizon. M33 easy with averted vision. M15 is naked eye. Milky way shows bulge into Ophiuchus. Limiting magnitude 6.6 to 7.0. 0.33 to 1.0

102. Effective Outdoor Lighting Council Of Texas (EOLC) Latest news on the abatement of light pollution in Texas and how anyone can help. http://users2.ev1.net/~mmccants/eolc/

Date: Wed, 20 Aug 2003 From: Julie Schaar Subject: Texas IDA has a Web Site and a List Forum! After a year of development, the Texas Darksky Association (Texas section of the International Darksky Association - Texas IDA) is proud to announce the launching of our new web site, http://www.TexasIDA.org. Visit the site to see what's going on in Texas to stop light pollution. Announce it to your Astronomy Club, and others interested in stopping light pollution in Texas. It will be updated frequently and is helpful to use as a reference. You can contact us via the web site Guest Book (shared with the public on the web site) or Contact Us page (private communications and email or address changes). Many of you have been involved in bringing about improved outdoor lighting. Let us know! If you are a member of IDA, at your request I can share the names of IDA members in your vicinity, according to the confidentiality policy linked to the home page of www.TexasIDA.org. Please let us know if you do not wish to receive any further notifications by email or if you do not wish to share your name with other Texas IDA members in your vicinity. A list forum has been set up for you to join at http://groups.yahoo.com/group/texasida. Only Texas members of IDA may join. Texas has over 500 IDA members and 70% list their email addresses. Be Part of the Solution: Stop Light Pollution! For more information on what you can do to make a difference in your community, go to http://home.epix.net/~ghonis/whatyou.htm. The article titled "Initiating a Lighting Ordinance in Your Municipality" is especially helpful. Let's work together through TexasIDA.org and the group mail list to find the best solutions for your community, county and state! Julie Schaar, Coordinator Texas Darksky Assn. (Texas IDA)

103. ICOLE Comprehensive information on the abatement of light pollution in Indiana including general links and resources as well as updates. http://home.att.net/~icole/

Promoting better outdoor lighting and reduced light pollution achieved by full shielding, downward aiming, and moderation of brightness. WELCOME TO ICOLE We Help Indiana Communities Create Outdoor Lighting Design and Use Standards! Need Help? Legislative Committee has recommended Governor appoint lighting Task Force (committee report page 17) URGE THE GOVERNOR TO APPOINT THE TASK FORCE! - contact info Or Click here to send our MAILFORM EMAIL MESSAGE to Gov. Daniels Outdoor Lighting Task Force media coverage Indianapolis Star Associated Press version (Evansville, Madison , Gary, Bloomington, others) ICOLE press release Governor urged "appoint the task force" Dr. Barry Clark's report examines lighting and crime studies - what do they tell us? ( other formats) UK's Guardian article: " Bright lights do not deter crime Our Vanishing Sky First of its kind exhibit created at Evansville Museum courtesy sponsor Vectren Energy Indiana Legislative committee hears ICOLE presentation: (EQSC minutes pg 5) " Introduction to the Impacts of Outdoor Lighting " Read ICOLE’s report "

104. Light Pollution light pollution by Dennis Cochran. Is this a joke? light pollution? The city of Los Angeles, famous for air pollution, may be the largest of a growing http://colorado.sierraclub.org/pandp/1998-06/lightpol.htm

Rocky Mountain Chapter's Online Newsletter June / July 1998 Light Pollution by Dennis Cochran Is this a joke? Light pollution? The city of Los Angeles, famous for air pollution, may be the largest of a growing number of municipalities that are doing something about light pollution, so it must be something. But what? L.A. has recognized three aspects to light pollution: light trespass, unwanted light shining into a window from outside or into your eyes when you're driving at night; loss of the night sky, another part of nature which we moderns can no longer take for granted; and the energy and money wasted by lights. Our forebears didn't have streetlights. They could tell what part of the year it was from the night sky, whether it was time to plant or to harvest. Nowadays we may know a lot of astronomy but very little about the night sky. The connection has been broken. The group that has noticed the sky disappear are the astronomers - including amateur astronomers. It's hard to stargaze if you can't see the stars for the lights. Amateur astronomy clubs each have a favorite dark-sky site for observations, far from the city and suburbs. Professional astronomers have to build their telescopes in remote locations to escape light pollution. These places are getting harder to find. Los Angeles has decided to reclaim its sky by changing its outdoor light fixtures to Full Cutoff Fixtures. These reflect light down towards the ground. None of it shines sideways into the squinting eyes of nighttime motorists or into bedroom windows.

105. Sky And Telescope - The Essential Magazine Of Astronomy Various articles about light pollution including one on the history of the problem, one on rating the darkness of your sky, one on how astronomers can do more to help reduce light pollution and one on good lighting fixtures. http://skyandtelescope.com/resources/darksky/

Welcome to SkyandTelescope.com, where you'll find astronomy news, stargazing tips, expert advice on choosing and using telescopes, and much, much more. Your Web browser appears to be set to block cookies. SkyandTelescope.com requires a cookie file, though you may visit the site without supplying any personal information, rendering the cookie anonymous. If you believe you reached this page in error, try clicking one of the links below to access our site. Our interactive sky chart and astronomical almanac require that you specify a city and country, but no name, address, or other personal information. You may delete the cookie after your visit, but you will then have to reenter your location information next time. To learn how to configure your system to accept cookies while visiting Web sites and/or to delete them afterward, see your browser's help page. Some browsers will allow you to accept SkyandTelescope.com's cookie without having to accept cookies from other sites. If you have any questions, please send e-mail to custserv@SkyandTelescope.com

106. VDCLP10. (Lighting &) Light Pollution List of References relating to planning and light pollution. http://www.nottingham.ac.uk/sbe/planbiblios/bibs/vacant/10.html

(updated: 11.8.05) Detailed Topic Index / Main Planning bibliographies Index See also:- Air pollution Contaminated land Derelict land Noise pollution ... Water pollution and also: Biodiversity Climate change Energy Environmental economics ... Green Business/Greening Economic Dev. in the Sustainable Dev. bib'y Central gov. Local gov. in the bibliography in the Urban Regeneration bibliography Development Plans: ( Regional plg. Structure plg. Local plg. Unitary Dev. Plans (UDPs ... Walking in the Sustainable Urban Travel bibliography in the Local Planning bibliography Plg. aid Plg. conditions Plg. consultancy Plg. enforcement ... Urban Design in the Effectiveness of Planning etc. bib'y in the bibliography Rural design in the Countryside Planning bibliography N.B. also the RTPI library catalogue on the web - go to http://www.rtpi.org.uk/library/lib_search.html and The British Astronomical Association Campaign for Dark Skies: http://www.dark-skies.org OFL=Ordered for Library - please check University Library catalogue for latest on availability: http://www.nottingham.ac.uk/library/

107. Introduction | Light Pollution | Lighting Answers | NLPIP Outdoor lighting has become a necessary integral part of society. light pollution is a byproduct of outdoor lighting. light pollution can be reduced by http://www.lrc.rpi.edu/programs/nlpip/lightinganswers/lightpollution/abstract.as

home site map news publications ... Educational Opportunities Volume 7 Issue 2 March 2003 Candela - The Systeme International d'Unities (SI) of luminous intensity. One candela is one lumen per steradian. Formerly, candle. Lumen (lm) - A unit measurement of the rate at which a lamp produces light. A lamp's light output rating expresses the total amount of light emitted in all directions per unit time. Ratings of initial light output provided by manufacturers express the total light output after 100 hours of operation. Illuminance - The amount of light (luminous flux) incident on a surface area. Illuminance is measured in footcandles (lumens/square foot) or lux (lumens/square meter). One footcandle equals 10.76 lux, although for convenience 10 lux commonly is used as the equivalent. Glare - The sensation produced by luminances within the visual field that are sufficiently greater than the luminance to which the eyes are adapted, which causes annoyance, discomfort, or loss in visual performance and visibility. Luminous flux - The rate of flow of light, measured in lumens. The overall light output of a lamp

108. Light Pollution Here in Columbus, the level of light pollution is severe. In terms of seeing where to point the telescope, light pollution does not substantially affect http://www.coseti.org/pollutio.htm

Optical SETI Map Conferences Map Illustrations Map Photo Galleries Map ... OSETI Network Search WWW Search www.coseti.org Search www.oseti.net Search www.photonstar.org Search www.fourthplanet.org Search www.stuartkingsley.com Light Pollution Here in Columbus, the level of light pollution is severe. Indeed, it is very difficult to see star below the 3rd magnitude. The dark-adapted naked eye is capable of seeing down to the 6th magnitude in localities far from city lights. In terms of seeing where to point the telescope, light pollution does not substantially affect Optical SETI as long as some form of CCD camera or optically-filtered image intensifier is used. As far as the ability to count photon bursts (beacon pulses), light pollution has little effect. For detection of monochromatic continuous wave beacons, the effect of light pollution is very significant, and the background radiation from the sky and the star itself must be substantially reduced using a narrow-band optical filter or monochromator. This substantially increases the search time since a guess has to be made of the so-called "magic" optical frequencies. Home Glossary SPIE's OSETI I Conference SPIE's OSETI II Conference ... SPIE's OSETI III Conference This Web Site: www.coseti.org

109. A Map Of Light Pollution In Southern California Rather than simply map the source of light pollution, which is what we Here the light pollution map is superimposed over a map of Southern California. http://www.sipe.com/starcruiser/observatory/html/observations_report03_01.html

Star Cruiser Observatory #444 Observations A Map of Light Pollution in Southern California In August 2001 Cizano, Falchi, and Elvidge published "The first world atlas of the artificial night sky brightness". Rather than simply map the source of light pollution, which is what we typically see when we see a light pollution map, their study shows the extend of light pollution due to light scatter from atmospheric conditions. For example, while Catalina Island does not appear on maps that show the source of light pollution, you can see from the map below that skyglow does affect Catalina. Details about the study can be found on their web site, The Night Sky in the World. I took the high-res North American map depicting their findings and overlaid the Southern California portion on a map. The results follow. Their descriptions are in regular type. I have added the descriptions in italics Zone Color Description Black Trace artificial LP Blue Artificial LP is 10% over natural sky brightness (“light polluted sky”). Long exposure astrophotos might show some light pollution gradient, but visual observing is relatively unimpaired.

110. Light Pollution Awareness Website A research paper investigating the development of and possible solutions to light pollution. http://members.aol.com/ctstarwchr/nightsky.htm

Welcome to the Light Pollution Awareness Website! The page you were directed to has been relocated. If your browser does not transit to the new location in a few seconds please click the following URL... http://members.aol.com/ctcadman/nightsky.htm Remember to update your bookmarks or links.

111. Caltech Astronomy : Light Pollution Movie and other nearby communities have greatly added to this light pollution, 900 Kb) illustrates how the increase of light pollution over time makes the http://www.astro.caltech.edu/palomarpublic/movies/pollution.html

Palomar Mountain was originally chosen as the site for the Observatory because it was far away from any large cities, so the glare from artificial lights would not drown out the faint signals from faraway stars and galaxies. In the last 50 years, however, the rapid growth of San Diego, Escondido, and other nearby communities have greatly added to this light pollution, and the Observatory is at risk of being unable to continue many key types of research. This animation (Quicktime, 900 Kb) illustrates how the increase of light pollution over time makes the night sky harder and harder to see not only for astronomers working at Palomar, but for everyone all over the Southern California region. Fortunately, there are a few simple precautions which we can all take, which not only help reduce light pollution, but also make more efficient use of our limited energy reserves and result in lower electricity bills: Use the minimum amount of outdoor lighting required for the task. Shield lights to prevent any direct upward illumination.

112. Save Our Starry Skies V2.0 Provides information about light pollution for young people. http://saveourstarryskies.homestead.com/

@import url(http://www.homestead.com/~media/elements/Text/font_styles.css); International Dark-Sky Association Youth Forum Welcome to the Official Homepage of the International Dark-Sky Association's Youth Working Group. The Chairman you can do to make a proactive contribution towards saving our starry skies! Save Our Night Skies! Join the IDA! For more information on Astronomy and the Universe, visit our partner website Observe The Heavens Save Our Starry Skies is an Featured Affiliate International Dark-Sky Association Youth Forum

113. Monkeyfist.com: Turning Off: Light Pollution And Net Noise The true culprit emerged light pollution. light pollution exerted a strange facination over me. I grew to like dark shadows contrasting with a full moon s http://monkeyfist.com/articles/525

home contact about archive ... Turning off: Light pollution and net noise by Bijan PARSIA Friday, 19 May 2000 Printer version Permanent URL Support this author's work When I was younger, I had the fervent desire to be a star-gazer. I spent a lot of time looking at what stars that could be seen over the suburnan sky, trying to transform the sparse speckled field into the jewel studded magnificance that guided sailors across the Aegean and could sometimes keep great poets from getting drunk. I did learn to recognize Orion. Then I discovered that it was not a lack in my spirit or flaw in my vision that left me straining to be moved. The true culprit emerged: Light Pollution. Light pollution exerted a strange facination over me. I grew to like dark shadows contrasting with a full moon's light. When I moved to Chapel Hill, the bane of my night time walking were the sweeping landing light of the local micro-airfield and the skyward spotlights of some far off used auto park. The general, diffuse increase in glow was bad enough, but these moving beams constantly caught my attention until I could no longer bear to be outside. Then, for the first time I truly got away from urban areas and saw the Milky Way. Nice.

114. Light Pollution Resources Yet the problem of light pollution is easily remedied. Save Our Sight A page devoted to light pollution and the problem of property rights and light http://webserver.lemoyne.edu/~mcmahon/lp.html

Light Pollution Resources Updated 9/07/04 Saving the Night Theft is occurring nightly before our very eyes. Increasingly, our dark nocturnal canopy is falling victim to the predatory glare of excessive and misdirected lighting, known by the popular term "light pollution." This rape of the sky's quiet majesty is not just a problem of aesthetics, however; wasted light costs us money, contributes to air pollution, compromises safety and security, intrudes onto our property, and invades our privacy. And although the solution is really quite simple, it will take a concerted and cooperative effort by all of us to address the situation properly. The culprit in this luminous larceny is misdirected light, illumination gone astray. Light intentionally directed upward, often seen lighting billboards and public buildings, is the worst offender since much of it simply splashes beyond its intended target. Other instances of misdirected lighting result from poorly shielded fixtures that still allow light to escape upward and horizontally. Such illumination not only destroys the beauty of the starry night but actually hinders the eye's ability to see by creating both glare and deep, dark shadows. In fact, poorly designed lighting installation along thoroughfares may affect a driver's vision in much the same way as do oncoming highbeam headlights. There are other important concerns as well. It has been estimated that 30% of the electricity generated for outdoor illumination is wasted. That comes to over $3-4 billion annually. In the case of taxpayer-funded public lighting, the issue also becomes one of fiscal accountability. Important, too, are the environmental costs of producing the energy to power wasted light. For example, for every kilowatt hour of electricity used, almost two pounds of carbon dioxide and almost two grams of sulphur dioxide (responsible for acid rain) are emitted into the environment. Thus by simply eliminating wasted light, those amounts can be substantially reduced with no adverse effect on necessary lighting and with decidedly positive environmental benefits for the region.

115. Science Year Home Page Information about the scienceyear project on light pollution at Shire Oaks school. Includes photographs, explanations of the problem and its causes effects and a light pollution questionnaire for pupils. http://www.shire-oak.walsall.sch.uk/subjects/sciweb/scienceyear/index.htm

Science Year is in its second year and we are continuing with our successful link with the Campaign for Dark Skies. The British Astronomical Association CAMPAIGN for DARK SKIES The CfDS is an organisation committed to the reduction and then the abolition of light pollution in our cities. You may be familiar with the " orange glow " from a city on the horizon - this is light pollution. Click the links below to find out more. Please take the time to download and complete our questionnaire. It is the first time at Shire Oak that we are attempting an online survey. It will involve printing out a questionnaire and returning it to us via your children at school. Thank you. Why choose this campaign? What is light pollution? Why is it important to reduce light pollution? Do you suffer from light pollution? - questionnaire Our pupils' websites Luke and Matt Daniel and Andrew Luke and Rob Thank you Shire Oak School Science Department would like to thank the Campaign for Dark Skies for allowing us to use some of their images in the production of this web site. Where their documentation has been used for quotes it is credited appropriately.

116. DARK SKIES Please search the following for solutions to light pollution The reason there is such a difference is because of light pollutionthe unwanted glow of http://darkskyinstitute.org/light.html

DARK SKIES Wow, this is one fantastic photo isn't it? Think again! A view of the U.S. and the light we waste. A really fantastic photo would show nearly all black with just a few little white dots. Can you find your town or city? It is possible to darken the skies over America and reclaim your view of the magnificent Milky Way. Please search the following for solutions to light pollution: Save the Milky Way A nighttime satellite view of the upper midwest showing the light pollution of cities and towns below. Little Ames, Iowa, is located almost exactly at the center of the image. Chicago is on the right and Minneapolis is at the top. Trace the line of lights marking I-80 westward from Chicago through the Quad Cities, Des Moines, and Omaha. Ames is straight north of Des Moines about 35 miles. How would you like to try to be a stargazer in Chicago? This image has a resolution of about 2.7 kilometers or 1.6 miles. Click on the image to make it larger. This is a DMSP photo.

117. Flagstaff Arizona Light Pollution Code Top/Society/Issues/Environment/Light_Pollution/Regulation/United_States http://c3po.cochise.cc.az.us/astro/pollution06p.htm

Updated: 09/20/2005 HAC's Weather Page Home Calendar of HAC Events HAC Officers ... Newsletter updated 8/15/05 Deep Sky Pages Shallow Sky Pages HAC Incorporation ATM Pages ... HAC Classifieds Updated 9/6/05! Astrometry 701 Internet Links Update Page Feedback to HAC ... HAC's ' Minor Planet Club' Members You are esteemed visitor since May 18, 2000 To arrange special viewing events, Contact: Ms. Jeanne Herbert Contact Us At: email: Huachuca Astronomy Club Mailing Address: 2310 E. Suma Drive Sierra Vista, AZ 85650 President: Doug Snyder Webmaster: Doug Snyder Revised Flagstaff Arizona Outdoor Lighting Ordinance Flagstaff Lighting Code Division 10-08-002 of the Land Development Code (LDC) First Flagstaff outdoor lighting restrictions: 1958 First Flagstaff comprehensive outdoor lighting code: 1973 Major revision and update (LPS; lumens/acre): November 1989 Land Development Code revision: April 1991 Updated (Canopy caps): June 1999 DIVISION 10-08-002. DEVELOPMENT LIGHTING REGULATIONS

118. BILL INFO-2001 Regular Session-HJ 14 Resolution to create a taskforce to combat light pollution in the state. http://mlis.state.md.us/2001rs/billfile/HJ0014.htm

2001 Regular Session bill information current as of December 5, 2001 - 11:32 p.m. Sponsors Title Synopsis History ... HOUSE JOINT RESOLUTION 14 JOINT RESOLUTION NUMBER: 12 File Code: Natural Resources - Generally Sponsored By: Delegates Kopp, Barkley, Bronrott, Cadden, Clagett, Conroy, Cryor, D'Amato, Dypski, Goldwater, Grosfeld, Harrison, Howard, Hubbard, Hubers, Hurson, Love, Mandel, McIntosh, Menes, Morhaim, Petzold, and Shriver Entitled: Task Force to Study Lighting Efficiency and Light Pollution in Maryland Synopsis: Establishing a Task Force to Study Lighting Efficiency and Light Pollution in Maryland; requiring the Task Force to study the cost, extent, causes, and consequences of current public lighting standards and policies and light pollution in Maryland; providing for the membership and appointment of the Task Force; requiring the Department of General Services to coordinate the professional and administrative support of the Task Force; and requiring the Task Force to issue a final report to the General Assembly by February 1, 2002. History by Legislative Date House Action First Reading Appropriations Hearing 3/6 at 11:00 a.m.

119. *Japan Lighting Information Services(JLIS)*-Event'98-Light Pollution Prevention light pollution Prevention symposium by sponsoring of the Association *How to lighting design according to the light pollution prevention guide line http://www.city.yokosuka.kanagawa.jp/speed/mypage/m-imajo/whatevent/event98/what

Japan Lighting Information Services Event'98 AKARI-Lighting Whats New Japanese Light Pollution Prevention Symposium National Science Museum Yoshihide Kozai Association of preserve the beauty night sky David L. Crawford Ph.D.,Executive Director of IDA Kouhei Narisada Doctor,Professor of University of Cyukyo Syuzo Isobe Assistant Professor of National Astronomical Observatory Takashi Ohyama Senior Manager Toshiba Lighting and Technology Corporation "Light pollution Prevention symposium" by sponsoring of the Association of preserve the beauty night sky and IDA Japan was held in the National Science Museum in Tokyo on September 23,1998. There were next keynote lectures. *Activities of the International Dark-Sky Association(IDA) by David L. Crawford, Ph.D.,Executive Director of IDA *How to lighting design according to the Light pollution prevention guide line by Kouhei Narisada, Doctor,Professor of University of Cyukyo *Energy loss of Japanese Light from space observation by Syuzo Isobe, Assistant Professor of National Astronomical Observatory There were introductions such as new light pollution prevention lighting fixtures and time switches by the lighting fixture makers(Toshiba Lighting and Technology Corporation, Matsushita Electric Works, Ltd., and Iwasaki Electric Co., Ltd.).

120. City Of Bisbee Light Pollution Code Top/Society/Issues/Environment/Light_Pollution/Regulation/United_States http://c3po.cochise.cc.az.us/astro/pollution05p.htm

Updated: 09/20/2005 HAC's Weather Page Home Calendar of HAC Events HAC Officers ... Newsletter updated 8/15/05 Deep Sky Pages Shallow Sky Pages HAC Incorporation ATM Pages ... HAC Classifieds Updated 9/6/05! Astrometry 701 Internet Links Update Page Feedback to HAC ... HAC's ' Minor Planet Club' Members You are esteemed visitor since May 18, 2000 To arrange special viewing events, Contact: Ms. Jeanne Herbert Contact Us At: email: Huachuca Astronomy Club Mailing Address: 2310 E. Suma Drive Sierra Vista, AZ 85650 President: Doug Snyder Webmaster: Doug Snyder ORDINANCE 0-98-10 AN ORDINANCE OF THE MAYOR AND COUNCIL, CITY OF BISBEE, COCHISE COUNTY, ARIZONA, ADOPTING ARTICLE 7.10. LIGHT POLLUTION CODE WHEREAS the Light Pollution Code is complete and NOW, THEREFORE BE IT ORDAINED by the Mayor and City Council, City of Bisbee, that a Document entitled "Article 7.10. Light Pollution Code" is hereby adopted and attached as Exhibit "A" and replaces the existing Article 7.10. of the Bisbee City Code. BE IT FURTHER ORDAINED that the Light Pollution Code is declared to be a public record and said copy is ordered to remain on file with the City Clerk.

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Page 6     101-120 of 171    Back | 1  | 2  | 3  | 4  | 5  | 6  | 7  | 8  | 9  | Next 20