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Campaign for Dark Skies

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'Dark sky' parks show night skies like those our pre-industrial ancestors viewed.
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Easy access to electricity and artificial light triggers a measurable reduction in human sleep, a new study of hunter-gatherer communities has said.
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Don't.

It's really not good for plants to be lit at night. Or for nocturnal wildlife.

#lighting   #environment   #lightpollution  
Lighting is increasingly something that as a garden designer I am being asked to factor into my schemes, especially in town gardens.
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Better quality on +500px https://500px.com/photo/109715471/universal-scale-by-mark-gee

When I go out photographing the night sky, I tend to spend a lot of time looking up trying to get my head around the vastness of space…it's really is incomprehensible when you think of how big space really is so I thought I’d list a few facts with this photo.

- The nearest star to our own Sun is Proxima Centauri, and that is 40 trillion km away.

- The Large Magellanic Clouds, which is can be seen near the centre of this photo, is an irregular dwarf galaxy 158,200 light years from earth. Now light travels at 300,000km per second, so you can just imagine how far away the Large Magellanic Cloud is when light travels that fast for 158,200 years…and that is a relatively close distance compared to the scale of our universe!

- The visible universe stretches out to around 13 billion light years from earth and contains around 100 billion galaxies. And each one of those galaxies contain around 100 billion stars - that means the visible universe contains something like 10,000 million million stars. And if you want to attempt to even put that into perspective…well basically there are more stars in the visible universe than there are grains of sand on our earth!

Source - https://www.youtube.com/watch?v=AC7yFDb1zOA

Want to know more? Follow me here:
http://theartofnight.com
http://plus.google.com/+markgee
http://facebook.com/markgphoto
http://500px.com/markg

#astrophotography   #howBigIsOurUniverse   #MilkyWay   #MarkGee   #theartofnight   #NZMustDo   #ventureout   #plannedWithPhotoPills  
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How the advertisements at Piccadilly Circus have changed over the years. From 1919 (none) to 2015. Over the years they've been lit by incandescent light bulbs, neon signs and now LED screens.

#advertising  
From Bovril to Guinness and Coca-Cola to McDonalds, Piccadilly Circus is the nation’s most famous advertising space. But the lights have gone out for one long-standing technology brand.
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"In the International Year of Light, astronomer +Alan Duffy wants Australians to think about light pollution and the conservation of our dark skies."

#lightpollution   #darkskyplaces  
Astronomer Alan Duffy wants Australians to think about light pollution and the conservation of dark skies.
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It is natural to want to shine light on what is dark, but Father Timothy Sauppé cautions that too much of a good thing could pose problems for the environment. 

The pastor of St. Mary Parish in Westville and St. Isaac Jogues Parish in Georgetown is one of the leaders in an effort to establish a chapter of the +IDA - International Dark-Sky Association in Vermilion County. The organization seeks to inform people about the effects of light pollution on humans and wildlife and to maintain a clear view of the night sky, which Father Sauppé calls “our natural heritage.”

“Light pollution is a matter of out of sight, out of mind,” he recently told The Catholic Post. “We’re sleeping at night, so most of it is wasted light. All we have to do is direct some of the lighting downward. It is easily corrected.”
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#lightpollution  
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Stunning Nightscapes: Earth & Sky Photo Contest 2015
The winners and notable photos of the 6th International Earth and Sky Photo Contest, (http://twanight.org/contest), a program by The World at Night (TWAN) in collaboration with the Global Astronomy Month (http://astrowb.org) and the National Optical Astronomy Observatory (NOAO). The contest theme is Dark Skies Importance. Similar to TWAN itself, the contest also aims to reclaim the natural beauty of starry sky and to help preserving the dark skies which are not yet dominated by artificial lights.

Sound artists: Thomas Nordwest (www.thomasnordwest.com).
Winner photos and more information on the contest page: http://twanight.org/contest

Credit: TWAN/Babak Tafreshi
Date: June 17, 2015

+Campaign for Dark Skies 
+International Dark-Sky Association 
+Babak Tafreshi 

#Space #Astronomy #Stars #MilkyWay #Galaxy #Aurora #StarTrails
#Earth  #Astrophotography #Art #Science #DarkSkies #LightPollution #International #Competition #Photography
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+Tree Lobsters on full spectrum light bulbs...
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Ever since electricity flipped the switch and transformed night into a blaze of colorful lights and excitement, people have assumed that the need to live in the light of day is history.

As the industrialization of society has taken over, it’s now easy to pick your hours. “Night owls” assume they can breeze through life at any and all hours, sleeping in when they choose with no consequences.

Many of us still possess a rebellious “don’t tell me when to go to bed” streak, and although we think it really doesn’t matter, science is slowly awakening us to the fact that it does. Desperately.
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#health   #circadianrhythms   #chronobiology   #depression   #insomnia   #sleep  
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"Dunedin's opportunity to become the world's first ''dark sky city'' could be lost if the replacement of the city's street lights is rushed."

#lightpollution   #darkskyplaces   #ledlighting  
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From: +Philip Plait's +Bad Astronomy blog. The Carina Nebula photographed in Melbourne, Australia, using filters.

#astrophotography   #filters   #lightpollution  
Normally, if you ask me how to do astrophotography, among other things I’ll say you need to have access to dark skies. If you live near a city, the sky glows with reflected light, and that washes out your pictures—check out a photo of Orion I took in 2014 (second photo down...
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Have them in circles
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Restore our natural, starry skies by reducing inefficient lighting.
Introduction
The Campaign for Dark Skies (CfDS) aims to preserve and restore the beauty of the night sky by campaigning against excessive, inefficient and irresponsible lighting that shines where it is not wanted nor needed.

It was founded in 1989 and is part of the British Astronomical Association (BAA) and affiliated with the International Dark-Sky Association (IDA).

The issues raised by light pollution do not only affect astronomers.  Other areas of concern include crime, the environment and health.

Glare and light spill can make it more difficult to see in the dark. Nocturnal wildlife, such as bats and moths, and plants, eg which use day length to monitor seasons, can be affected. So can migrating birds. Intrusive light can, for example, disrupt sleep.

Some of the pages on the Campaign for Dark Skies website:
Publications about light pollution:

Books:

Light Pollution: Responses and Remedies, 2nd Edition, Bob Mizon, Springer, was published on 24 June 2012. The first version of the book is still available: Light Pollution: Responses and RemediesBob Mizon, Springer, 2002. On amazon.co.uk 'Look Inside!' is enabled for both books. The previews include contents and index.


There Once Was a Sky Full of Stars, Bob Crelin and Amie Ziner, Sky Publishing Corporation, 2007.

Reports:

Light Pollution and Astronomy, House of Commons Science and Technology Committee, 2003 [pdf]

Artificial Light in the Environment, The Royal Commission on Environmental Pollution, 2009. [pdf]


Guidance for the Reduction of Obtrusive Light, ILP, 2012. [pdf, automatic download]

A Review of the Impact of Artificial Light on Invertebrates, Charlotte Bruce-White and Matt Shardlow, Buglife, 2011. [pdf]

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