81. Canberra Astronomical Society - Light Pollution Go to CAS Home Page, Canberra Astronomical Society. light pollution and Astronomy. Foramateur astronomers the problem of light pollution becomes a nightmare. http://msowww.anu.edu.au/cas/light_pollution.html

Canberra Astronomical Society 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 some amateurs supplements the work of professionals. These amateurs should be regarded as unpaid professional observers. The main function of a telescope is to amplify light from distant objects, as these objects are very faint. Stray light has the effect of washing out the contrast and reducing the image quality. If you turn up the brightness on your TV you can simulate the effect. The higher the brightness the more the image deteriorates. For an astronomer, that light YOU leave on in the back yard, or those flood lights in the driveway, can mean the end to any chance of using a telescope on all but the brightest of objects.

82. IDA Utah Includes information on good bad light fixtures, hidden costs and health risks with pictures and links. http://www.UtahSkies.org/lightpollution

The Utah Section of The International Dark-Sky Association We are losing our heritage of starry nights. Artificial light in the night sky threatens to destroy the spectacular views the heavens offer. This "light pollution" wastes energy and provides no benefit to society. Light Pollution is misused or misdirected light: Sky Glow .............is light wastefully escaping into the night sky and causing a glow over urban/suburban areas Glare ....................is light shining dangerously out into peoples eyes as they walk or drive by. Light Trespass .....is unwanted light shining onto a neighbors property or into their house. Light Pollution wastes billions of dollars annually in the United States wastes incredible amounts of valuable natural resources pollutes the air we breath through needless generation of electricity (most of which comes from fossil fuels) harms nocturnal wildlife harms humankind, being linked to some serious ailments destroys the views of the heavens that man has enjoyed since the beginning of time.

83. Day One For Light Pollution Law: Czech Republic Becomes First Nation To Outlaw E Day one for light pollution law. Czech on. The first national law prohibiting light pollution comes into effect there tomorrow. http://www.nature.com/nsu/020527/020527-14.html

updated at midnight GMT search nature science update advanced search Day one for light pollution law Czech Republic becomes first nation to outlaw excess outdoor light. 31 May 2002 TOM CLARKE Starry nights in Prague are on the up. There'll be starrier skies over the Czech Republic from now on. The first national law prohibiting 'light pollution' comes into effect there tomorrow. From 1 June, all outdoor light fixtures in the country must be shielded to ensure light goes only in the direction intended, and not above the horizontal. Light from street and road signs bounces off molecules in the atmosphere, making skies, especially over cities, less dark. This light pollution is a particular problem for astronomers. Even low levels of man-made light from distant cities can obscure their view of faint objects far away in space. Czech astronomers who lobbied for the legislation are delighted, but everyone should benefit from the new law, they say. "My fellow citizens are as concerned as I am about glare from poorly designed lighting. They're happy action was taken," says Jenik Hollan, an astronomer at Nicholas Copernicus Observatory and Planetarium in Brno. Others hope the initiative will catch on elsewhere. "We applaud the Czechs and are committed to helping other governments enact similar legislation," says astronomer David Crawford, executive director of the International Dark-Sky Association, a US-based group that campaigns to curb light pollution.

84. RCA: Dark Skies Includes a information about the effects of light pollution and local darksky sites. http://www.rca-omsi.org/darkskies.htm

Rose City Astronomers Site Index Membership Calendar Newsletter ... Star Links Oregon Dark Skies Rose City Astronomers are proud members of the International Dark Sky Association. Our members are active observers in Oregon and Southern Washington. IDA Newsletters Why are engineers, medical professionals, and amateur astronomers, concerned about the effects of Light Pollution? Some studies show: the effects of not sleeping in total darkness can degrade the immune system of animals and humans. Poor lighting and wasted energy is misuse of electricity and money. Misdirected light, 'Light Trespass' is a nuisance and architecturally unappealing. Studies show that various uses of lighting may actually increase crime, just exactly the opposite of what people try to achieve. The light pollution from inferior lighting design on highways creates a hazard to driving known as 'Road Glare.' The light polluted night sky is a priceless educational resource lost to poor lighting management. RCA has a slide show created by the International Dark Sky Association which is available by request. These slides show different lighting techniques and their effect on the night sky.

85. Light Pollution For more information on combatting light pollution, please visit these websitesInternational Dark Sky Association s website RASC light pollution Abatement http://www.skynewsmagazine.com/pages/lightpollution.html

Please visit... SkyNews Magazine Home Current Issue Back Issues Subscribe ... Terence Dickinson, Editor Light Pollution May/June 2004 on sale now! For more information on combatting light pollution, please visit these websites: International Dark Sky Association's website RASC Light Pollution Abatement Program Durham Region Astronomical Society Light Pollution Abatement Committee Do yo know of any good, public observing locations that are free from light pollution? If so, please click HERE to submit it to our list of reader observing sites Power Blackout Shows the Nightsky Once Again The power blackout that affected Ontario and many north-eastern U.S. states on August 14, 2003 allowed urbanites to see the beauty of the nightsky for the first time in decades. Millions of people had the opportunity that night to see a sky completely devoid of light pollution and were shocked at what they could see. Those with telescopes excitedly began observing objects that they never expected would be visible from suburbia and shared them with friends and neighbours. Although the onset of moonrise soon after dark caused the Milky Way to be washed out, until then it could easily be seen as from downtown locations.

86. Star Watch UK Explains how Star Watch UK, a survey of light pollution in the UK was undertaken. The project is, at least for the time being, not taking in results. http://www.u-net.com/ph/starw-uk/home.htm

A Survey of Sky Brightness Note: This site is no longer maintained. Important Notice Please Read ! Introduction In recent years the increasing amount of lighting (street, security, advertising lights etc.) has meant that a dark sky is a rarity. This is of concern to astronomers and the general public because the sight of the stars is one of Nature's wonders. No one wishes to deny our children the opportunity of viewing this wonder. Star Watch UK is a project to observe and record the brightness of the sky from all parts of the UK. It is an opportunity for everyone, experienced astronomer or the youngest school child, to take part in a nationwide survey. The project is a collaboration between many national organisations , and follows similar surveys undertaken in Japan, the USA and Canada Star Watch UK has two parts: Visual observing - for which you only need your eyes and a pencil, and Photography . Any one can take part in either or both categories by printing out and completing the form and charts available on this site. The RGO will co-ordinate the analysis and a report will be issued at the end of each year. Any data received will be used in a manner appropriate to the survey and may include publication of selected photographs. The project is not a test of the individual observer, the observer is the record keeper of the actual sky brightness in their area.

87. DARK SKIES Way. Please search the following for solutions to light pollution Savethe Milky Way. Look what a difference light pollution makes! Won 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.

88. WebQuest A school project on light pollution in the United States. http://www.geocities.com/psxwoman/

A Light Pollution Web Quest For American Government Designed by Kara Rowbotham krowboth@williamsbay.k12.wi.us and Jeff Bailey jjbailey@williamsbay.k12.wi.us Introduction Task Process ... Credits Introduction In the past ten years or so, the amount of light produced by artificial lighting has doubled. This over-lighting, called light pollution, has not only made observing objects in the night sky increasingly difficult for interested viewers, it has also presented a safety hazard due to how our eyes adjust to light. We will research how light pollution affects our lives, explore possible workable solutions to the problem, and determine ways to communicate what we have learned to others. Back to the top The Task Using the background information provided by this Web Quest and examples of city outdoor lighting ordinances, we will create a multi-media campaign to make the Geneva Lakes area aware of light pollution and the need for lighting restrictions. The following are critical questions that must be addressed in all phases of the multi-media campaign: What is light pollution?

89. ILE Institution Of Lighting Engineers - Home Page Forerunner in light pollution control in the UK. Publishes lighting codes and guidance available via the website. Website content is minimal. http://www.ile.co.uk/

home page about us forum news ... legal WHAT'S CURRENT Thursday 10th June 2004 LATEST NEWS GOVERNMENT ACKNOWLEDGES INSTITUTION OF LIGHTING ENGINEERS WORK ON LIGHT POLLUTION The Institution of Lighting Engineers (ILE) today .... EVENTS Erlestoke Sands more news more events Welcome to the ILE website the online centre for latest news and valuable information of benefit to everyone involved in the lighting business INSTITUTION OF LIGHTING ENGINEERS

90. Light Pollution light pollution. Canberra Astronomical Society light pollution, Outdoor LightingImprovement Section Astronomical Society of Victoria, Be Light Aware! http://library.trinity.wa.edu.au/subjects/science/dark.htm

Trinity College Western Australia Light Pollution Protecting the Environment, Preventing Pollution and Promoting Conservation Astronomy Science Canberra Astronomical Society - Light Pollution ... Outdoor Lighting Improvement Section Astronomical Society of Victoria Be Light Aware! Adelaide's Light Pollution City lights destroying astronomy Stephen Brook 15 Feb 01 news.com.au Illuminating Engineering Society of Australia and New Zealand International Dark Sky The Light Pollution Abatement Authority Star Watch UK ... Campaign for Dark Skies British Astronomical Association Too Much Light In Night time Skies Calvin Woodward ABC News USA Light Pollution John McMahon Includes more links Light Pollution, the Neglected Problem

91. Home Page The IESANZ is the central organization for lighting engineers in the area who set guidelines on light pollution control and energy efficiency. http://www.iesanz.asn.au/

The Illuminating Engineering Society of Australia and New Zealand Limited Our new web site is now located at www.iesanz.org For individual Chapter information click on the following links Queenslan d Victori a ... Link to Previous Central Web Site

92. Edmonton R.A.Son R.A.S.C. Light Pollution Awareness & Abatement Committee - Home Royal Astronomical Society of Canada La Societe Royale D Astronomie du Canada. Edmontonlight pollution Awareness Abatement Committee. Our Mission Statement. http://www.ecn.ab.ca/lighting/

Royal Astronomical Society of Canada La Societe Royale D'Astronomie du Canada Our Mission Statement Safeguarding access to the streets, and the Universe through responsible lighting. Please note that this site has moved. We invite you to follow the link below to our new home. [Our New Home] Last Revised: January 24, 2002 Royal Astronomical Society of Canada, Edmonton Centre.

93. Light Pollution Filters light pollution Filters for the (Much Too) Enlightened Masses. Latest RevisionDecember 11, 2003 Back To GATFAQ Home. light pollution Filters Contents http://www.astronexus.com/gatfaq/filters.html

Light Pollution Filters for the (Much Too) Enlightened Masses Latest Revision: December 11, 2003 Back To GATFAQ Home All this information is accurate to the best of my knowledge; if there are any omissions or errors, please let me know. This document is intended to be an overview, not the end-all-and-be-all of a given topic. If you want to find out more about a specific gadget, accessory, or thingy, consult the references listed in each section. Light Pollution Filters Contents: Do LPRF's work? How do LPRF's work? What do they work best on, and why? What ... Where can I find more information? (References) Do LPRF's work? Light-pollution reduction filters (henceforth, LPRFs) do work on some things. They are not a substitute for a clear sky, but they can and do provide improved views of many objects. Furthermore, filters can be of use even in very dark skies, not just ones that are significantly affected by city lights. How do LPRF's work? Filters work by rejecting light in certain frequency ranges. As you may already know, many artificial light sources emit over fairly narrow wavelength ranges. Chief among these are the wavelengths associated with LPS (low-pressure sodium), HPS (high-pressure sodium), and mercury vapor lamps. Sodium lamps produce light centered on the sodium D line at 589 nm (yellow), with HPS covering a much wider range than LPS; mercury lamps produce a number of lines throughout the spectrum, particularly below 450 nm and above 550 nm. All LPRFs are designed to block the wavelength regions associated with these sources.

94. 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)

95. York University Observatory - Light Pollution Page light pollution Awareness. With Astronomers, both professional and amateur, fightingfor darker skies the message is yet to be fully heard and understood. http://aries.phys.yorku.ca/~delaney/lp.html

Light Pollution Awareness With Astronomers, both professional and amateur, fighting for darker skies the message is yet to be fully heard and understood. In essence Light Pollution is the scattering of light coming from sources which serve no function but to light up the sky - i.e are pointed upwards! It is commonly found that most light fixtures end up spewing more light upwards than down. This not only makes for terrible sky conditions (background glow) but also wastes a lot of energy. For these reasons there exist many organisations around the world which are trying to " Turn on the Night Below you will find a few links to some of these organisations. RASC Light Pollution Abatement Program International Dark-Sky Association Ecology of the Night An International Symposium: Darkness as a Biological Imperative 22 - 24 September 2003, Muskoka, Ontario As if the lack of a dark sky wasn't bad enough... A planetarium is a vital educational resource in a city whose children never get to see a dark, starry sky but Toronto doesn't have one. Visit the Planetarium Renaissance Group to find out why, and to learn how you can help.

96. 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 Updated November 30, 2003 ICOLE PRESS RELEASE - Citizens Gather at Statehouse to Study Light Pollution 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" Legislative Committee recommends 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. Kernan 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 "

97. Flagstaff Arizona Light Pollution Code It is the intent of this Division to encourage lighting practices and systems whichwill minimize light pollution, glare, light trespass; conserve energy and http://c3po.cochise.cc.az.us/astro/pollution06p.htm

Updated: 01/07/2003 HAC's Weather Page Home Calendar of HAC Events HAC Officers ... Treasurer Reports You are esteemed visitor since May 18, 2000 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 10-08-002-0001. INTENT AND PURPOSE 10-08-002-0002. APPLICABILITY A. NEW USES, BUILDINGS AND ADDITIONS: All proposed new land uses, developments, buildings, structures, or building additions of twenty-five (25) percent or more in terms of additional dwelling units, gross floor area, seating capacity, or other units of measurement specified herein, either with a single addition or cumulative additions subsequent to the effective date of this provision, August 5, 1999, shall meet the requirements of this Division for the entire property. This includes additions which increase the total number of required parking spaces by twenty-five (25) percent or more. For all building additions of less than twenty-five (25) percent cumulative, the applicant shall only have to meet the requirements of this Division for any new outdoor lighting provided.

98. Ted's Astropix: Light Pollution Scourge Personal sermon on light pollution by a Ohio resident with various bits of information on the topic. http://www.saker.com/astropix/astropix.htm

YOU HAVE FOUND THEM! TED'S ASTROPIX! You have demonstrated your cleverness, taken the time to click on the secret link, and found my astrophotography pages. I pursue my passion for Astronomy, particularly Astrophotography, on those fairly rare transparent nights in Central Ohio. I took these pictures from various locations; however, one scourge exists: EXTREME LIGHT POLLUTION! The caramel glow of wasteful and inefficient outdoor lighting extends some 40 degrees into the sky in every direction around the horizon as seen from my Columbus backyard. The background on this page roughly approximates the appearance of the nighttime sky from my backyard. The lights shining into my property from my neighbors' houses is also a major nuisance. How would you like it if your neighbor played heavy metal music at 120 decibels and directed it towards your house on a constant basis? Heck, neighbors of the local amphitheater, a concert venue drawing all kinds of acts, who are residents of the City of Westerville, have complained for years about the noise from performances staged at the amphitheater. The lack of concern for their quality of life on the part of the City of Columbus (where the amphitheater is located) and the owners of the venue underscore the frustration of those seeking to contain nuisances. Light pollution is equivalent to being subjected to loud noise on a continual basis.

99. IDA Utah Lots of articles, images, starcharts information on light pollution and greatlinks too. Visit our light pollution Media Center. Here you ll find http://www.utahskies.org/lightpollution/

The Utah Section of The International Dark-Sky Association We are losing our heritage of starry nights. Artificial light in the night sky threatens to destroy the spectacular views the heavens offer. This "light pollution" wastes energy and provides no benefit to society. Light Pollution is misused or misdirected light: Sky Glow .............is light wastefully escaping into the night sky and causing a glow over urban/suburban areas Glare ....................is light shining dangerously out into peoples eyes as they walk or drive by. Light Trespass .....is unwanted light shining onto a neighbors property or into their house. Light Pollution wastes billions of dollars annually in the United States wastes incredible amounts of valuable natural resources pollutes the air we breath through needless generation of electricity (most of which comes from fossil fuels) harms nocturnal wildlife harms humankind, being linked to some serious ailments destroys the views of the heavens that man has enjoyed since the beginning of time.

100. 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/

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