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/Home/Sciences/Earth & Space/Astronomy/Observation/Light Pollution Caltech Astronomy : Light pollution movie Votes:0 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 Read More Go to Site Canberra Astronomical Society - Light Pollution Votes:0 Light Pollution and Astronomy By far the biggest problem facing amateur and professional astronomers is excess light. The reason observatories are built in remote areas is to get away from obtrusive lighting, smog and other bad "seeing" conditions, astronomers are not anti-social. A lot of planning must go into site selection to take advantage of the clear steady air in unpopulated areas. It is useless to build a facility that costs millions of dollars only to have its useful life cut short by the growth of a new city. For amateur astronomers the problem of light pollution becomes a nightmare. Light from shops, sports grounds and yard lighting limit, if not end totally, the usefulness of the "backyard observatory". Apart from the simple pleasure of looking at the night sky, the work of som Read More Go to Site Energimyndigheten - Ny webbadress Votes:0 Energimyndigheten Ny webbadress Du har en l?nk till Energimyndighetens webbplats som inte fungerar l?ngre! Sedan september 2006 har Energimyndigheten en ny webbadress, www.energimyndigheten.se. Favoriter till gamla sidor fungerar inte l?ngre utan du m?ste g? in p? nytt p? v?r webb och l?gga en ny favorit i din webbl?sare! Tack f?r att du bes?ker oss! Omdirigering till www.energimyndigheten.se Box 130, 631 04 Eskilstuna, Bes?ksadress: Kungsgatan 43, Telefon: 016-544 20 00, Fax: 016-544 20 99, Epost: Energimyndigheten Read More Go to Site International Dark-Sky Association (IDA) Votes:0 International Dark-Sky Association (IDA) Our mission is to preserve and protect the nighttime environment and our heritage of dark skies through quality outdoor lighting. skip navigation Major Website Renovation in Progress home site guide search contact About Support News & events Programs Lighting Resources Sections Join / donate Google search Search terms Submit search Quick links Select a link FAQs News Fixtures Regulations Catalog Newsletter Info sheets Images Dark Sky Finder Education Environment Health Safety Select a link eNews Enter email address Submit subscription Subscribe International Dark-Sky Association The Light Pollution Authority Major Website Renovation in Progress Light pollution Any adverse effect of artificial light, including sky glow, glare, light trespass, lig Read More Go to Site Light Pollution Votes:0 Light Pollution Skyglow / Light Pollution JPEG , GIF , TIFF . Experimental image modeling light pollution in the continental United States. This is based on the location and population (1990 census) of significant U.S. cities and towns (over 50 population). As the program is made more efficient, I hope to be able to include more smaller towns and perhaps rural population. I may include 2000 census (and Canadian) info once it becomes available in a list of town lat, lon, & population. The image is a plot of expected sky glow at the zenith. Light pollution from a city is assumed to be related linearly to the population and the inverse 2.5 power of the distance (as in Walker's law). The relation used here is I = 11300000 x population x r^-2.5, where I is in nanoLamberts and r is in meters. Th Read More Go to Site Light Pollution Votes:0 Light Pollution: Everyone's Problem Light pollution should be an environmental concern for every citizen. The harmful effects of light pollution include energy waste, roadway glare, light trespass (light spilled beyond its intended target), unnatural effects on flora and fauna, and skyglow. The findings and recommendations of the New Jersey Light Pollution Study Commission have been presented to the Governor but thus far there has been NO action. This is surprising given the public statements made by the Governor in support of the environment. The following is a quote from Governor Whitman?s State of the State address on January 14, 1997... "Like our roads and infrastructure, our priceless environment is something that must endure for future generations. As we have proved many times, Read More Go to Site Light Pollution Awards Springfield Votes:0 Light Pollution Awards Springfield [Massachusetts] STARS Club The sign reads: " City of Bright Nights Welcomes You! " What can an amateur astronomer say about a city that celebrates light pollution? 1997 Light Pollution Awareness Award Winners The Main Street Post Office in downtown Springfield won the award for BEST lighting, fully shielded sidewalk/parking lot lights. Waldbaum's Super Foodmart in Westfield took the award for the WORST lighting, with a parking lot full of super-bright, unshielded halogen lights. Though the lights are mounted high enough to not blind pedestrians, the lighting is horribly inefficient and a vast overkill for the lighting need. Unfortunate the lighting replaced well designed and efficient "shoebox" sodium vapor lights, that can still be se Read More Go to Site Light Pollution or not, that is the question Votes:0 The Sky I hate - and the Sky I love.. Unfortunately, an undisturbed sky is no longer an experience possible foreverybody. Amateur Astronomers and Wildlife Associations worldwide regardthe increasing light pollution with increasing concern. Electric energy iswasted irrespective of world wide concern on CO2 pollution. Bad street illumination is clearly visible even from space satellites (click for a nightphoto of Europe) , and a new age of sky commercials has started. During the second world war, longrange searchlights were applied to detect air-crafts attacking during nighttime. Today, modern versions of these searchlights are successfully appliedbyan increasing number of companies for advertising. Companies advertise withlong range lasers, able to dominate the sky within a radius o Read More Go to Site LightLab International Votes:0 Home About LightLab Products Software Laboratory Library New hand-held optical meters now available... Next Agi32 courses click here . Comprehensive testing services from brand new Brisbane facility LightLab International is a supplier of high quality specialist light measuring equipment. Find out more... We have an ever-expanding set of software tools crafted to provide you with the latest technology. Find out more... LightLab operates the longest serving independent NATA accredited photometric laboratory in Australia. Find out more... © 2006 LightLab International Contact Us Read More Go to Site Pennsylvania Outdoor Lighting Council (POLC) Votes:0 Viewing this page requires a browser capable of displaying frames. Read More Go to Site Royal Astronomical Society of Canada - Light Pollution Abatement Votes:0 '); docprint.document.write(' '); docprint.document.write(content_value); docprint.document.write(' ? 2007 Royal Astronomical Society of Canada, All Rights Reserved '); docprint.document.write(' Read More Go to Site South Florida Amateur Astronomers Association & The Fox Observatory - Home Votes:0 StarDate: 20 November 2007 South Florida Amateur Astronomers Association 16001 W. State Rd 84, Sunrise, FL SFAAA is a registered non-profit educational amateur astronomy society located in Sunrise, Florida. Membership is open to anyone interested in any area of astronomy. See the Becoming a Member section for more information. ClearSky Clocks Fox Observatory Area 51 Fakahatchee Strand Kirby Storter Search Online ▪ Visitors Online 42 Main Menu Home About Us Contact Us Becoming a Member SFAAA Newsletter Articles Tonight's Sky Gallery News Feeds Club Solicitations Calender of Events File Repository Forum Glossary Links Search Observing Reports Yahoo!Group SiteMap We had a pretty good August! Written by Charlie Hein Monday, 03 September 2007 Oddly enough August has been a good month for Read More Go to Site Star light. Night bright. Votes:0 Related Why Files: Radioastronomy X-ray astronomy Infra-red astronomy The Eastern Seaboard and Midwest glow in this satellite image. All this light is wasted, say astronomers, who argue that reducing light pollution would also save money. Courtesy International Dark Sky Association The Mount Wilson Observatory, high above the Los Angeles basin in the San Gabriel Mountains of Southern California. Courtesy NASA. How much light does it take to sell a car --when the store is closed? Feeling light-headed POSTED 20 APRIL 2000 In most cities, there's little point in gazing at the sky -- unless you're fascinated by the sight of a few stars and some airplanes against a glowing background. If you have not seen a truly dark sky, you may not know that the urban glow conceals a network of uncountable s Read More Go to Site The American Astronomical Society Committee on Light Pollution, Space Debris and Radio Frequency Interference Votes:0 The night sky in suburban Toronto during and just after the 2003 blackout Radio interference in the 21 cm band (from SETI.org) The AAS Committee on Light Pollution, Radio Interference and Space Debris Welcome to the website of the American Astronomical Society's Committee on Light Pollution, Radio Interference and Space Debris. The purpose of the committee is to coordinate action and information for the astronomical community on these issues, which are central both to ground based and space based astronomy. It is our hope that this site can also serve as a clearinghouse for the greater public on these issues. The Globe at Night: A graphic demonstration of light pollution Committee Membership Light Pollution Radio Inteference Space Debris Why is Light Pollution a problem? Why is radio inter Read More Go to Site The Anti-lightpollution Section Votes:0 The Anti-lightpollution Section . The Anti-lightpollution Section History: The Astronomical Societys Anti-lightpollution Section (AS-ALS) was established in 1992, but lightpollution has been discussed by professional and amateur astronomers at least since the beginning of the 1980'ties, primarily in the USA. Goal: The section contributes to the fight against lightpollution in Denmark with the purpose to secure everyones possibility to enjoy and study the night sky. The objectives of the section are: To gather members interested in lightpollution. To gather and distribute knowledge about lightpollution, its causes, extent and possible countermeasures. To initialize and participate in a debate about lightpollution. Offer advice to the solution of problems caused by lightpollution. Activities Read More Go to Site The BERR web page or document you are looking for has not been found. - BERR Votes:0 | Skip to main content Search the site Main Menu Other links Reports & Publications Consultations Press Room Sections Better Business Framework Europe & World Trade Business Sectors Innovation Employment Matters Regional Economic Development Energy Science About About us Contact Help with this site Site index 20 November 2007 Confident Consumers - A Fair Deal creating Prosperity & Success for All Choose a popular page Popular pages Consumer factsheets Ministers' biogs Ministers' speeches Public holidays What's New You are here: Home > Administration Section Menu Administration Help with this Site Privacy Contact Disclaimer Copyright The BERR web page or document you are looking for has not been found. We have restructured our website, and the information you are looking for has been mov Read More Go to Site The Campaign for Dark Skies Website has moved to... http://www.dark-skies.org/ Votes:0 ( A Joint Commission of the BAA and the IDA ) Campaign for Dark Skies Sorry for the inconvenience, but the CfDS site is no longer here. It has moved on, to be maintained by someone else. Please ask the webmaster of the site that brought you here to change their link to the new address... http://www.dark-skies.org/ Campaign for Dark Skies Has Moved! http://www.dark-skies.org/ Free counter Read More Go to Site

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