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Commission for Dark Skies
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Shaftesbury ​School floodlights get the go-ahead despite light and noise pollution fears

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Councillor Belinda Ridout said: "Excuse the pun, but I feel I am being asked to make a decision in the dark because I have not seen it. There is real concern about light pollution."
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Some councillors are making planning decisions based solely on photographs, artist's impressions and maps. It is difficult using only images and diagrams to appreciate the effects of lighting on the actual site.
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Six 15-metre high floodlights.
A FAST growing football club has submitted plans to build six 15-metre high floodlights at its pitches in Hanham. AEK-Boco, which is based in Greenbank Road, has applied to South Gloucestershire...
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I'll hazard a guess the club owners don't live in the very same residential area.
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Fremont Fire Lookout at Mount Rainier, Washington state, USA
The Mount Fremont Fire Lookout is a fire lookout in the northern region of Mount Rainier National Park at an elevation above 7,000 feet (2,100 m), the highest in the park.

Mount Rainier is the highest mountain of the Cascade Range of the Pacific Northwest, and the highest mountain in the state of Washington. It is a large active stratovolcano located 54 miles (87 km) south-southeast of Seattle. It is the most topographically prominent mountain in the contiguous United States and the Cascade Volcanic Arc, with a summit elevation of 14,417 ft (4,394 m). Mt. Rainier is considered one of the most dangerous volcanoes in the world, and it is on the Decade Volcano list. (Source: Wikipedia)

Mount Rainier National Park (U.S. National Park Service)
www.nps.gov/mora/index.htm

Credit: Don Jensen
Date: September 12, 2015

+Commission for Dark Skies 

#Astronomy #Space #Science #MilkyWay #Galaxy #Stars #Earth #Mount #Rainier #Stratovolcano #Volcano #Seattle #Washington #PacificNorthwest #USA #UnitedStates #Astrophotography #Art #Cosmos #Universe #Panorama
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Some moths, such as the Elephant Hawk-moth, can distinguish colours in light as faint as starlight.

Paper: Colour Vision in Diurnal and Nocturnal Hawkmoths

"Even in dim starlight, however, nocturnal hawkmoths use chromatic cues rather than achromatic cues to recognize rewarding flowers."
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Dark Sky Discovery Award. for Forest of Bowland, Lancashire.
AN astronomer has expressed his delight for the Forest of Bowland being given recognition for its clear night skies.
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A page about blue-rich light from the new Commission for Dark Skies website.

#LEDlighting #streetlights #bluelight
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Blue-white light definitely is a concern for human health, but it's also a problem because it scatters more than sodium light, causing greater sky glow.

As these are white LEDs they produce a wide range of wavelengths - colour temperature gives a measure of the peak emission.

One consequence is that using filters to cut out particular wavelengths, for example for photography, isn't possible.
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"The study found that even with a 40 percent increase in Florida’s human population during that period, two-thirds of beaches in communities with light pollution regulations had darker and more turtle-friendly beaches."

#environment
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Kerry International Dark-Sky Reserve. It includes Skellig Michael which was one of the locations for "Star Wars: The Force Awakens."

[Insert dark-sky - dark-side pun here ;) ]
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Stop using light-sabres that aren't natural please!
(Best pun I could think of on the spur of the moment.) 😊
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United Kingdom, France & Belgium | International Space Station
Tim Peake: "Hey, I recognise that place!"
 
Looking to the East along the English Channel with UK on the left and France on the right. The streetlights from the densely populated London, Paris and Brussels glow brightly in the center of the picture.

Learn about UK astronaut Tim Peake's Principia mission: www.esa.int/Principia
Follow Tim Peake via timpeake.esa.int

Credit: NASA, European Space Agency, British astronaut Tim Peake
Release Date: January 30, 2016

+UK Space Agency 
+European Space Agency, ESA 
+NASA Johnson Space Center 

#NASA #ESA #Space #ISS #Earth #London #Paris #Brussels #France #Belgium #Spacecraft #Technology #Astronaut #TimPeake #England #UK #UnitedKingdom #Principia #Europe #Science #Expedition46 #STEM #Education #OrbitalPerspective
#OverviewEffect #Belgique #België #Bruxelles #Brussel
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"Do you want to translate the Loss of the Night app into your language?

I currently have offers to translate the Loss of the Night citizen science app into 3 additional languages. When I have at least 5 additional languages, I can arrange a new release. Please let me know if you are interested in helping by volunteering to translating two XML files and the text for the play and app stores into your native language. You can expect the job to take about four hours of translation time, plus about 20 minutes verifying that the translation works correctly in the app.

The app is already translated into: Arabic, Catalan, Chinese, Czech, French, German, Hebrew, Italian, Japanese, Polish, Romanian, Slovak, Spanish, and Turkish. If you are interested volunteering a new translation, please send an email to Christopher Kyba."
I currently have offers to translate the Loss of the Night citizen science app into 3 additional languages. When I have at least 5 additional languages, I can arrange a new release. Please let me know if you are interested in...
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Photo taken by Tim Peake of the Mediterranean.
Expedition 46 flight engineer Tim Peake of the European Space Agency (ESA) shared this stunning nighttime photograph with his social media followers on Jan. 25, 2016, writing, "Beautiful night pass over Italy, Alps and Mediterranean."
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http://www.citiesatnight.org/ used photos taken from the International Space Station.

#lightpollution #cities #LEDlighting
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Tagline
Restore our natural, starry skies by reducing inefficient lighting.
Introduction
The Commission 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]

DVD:

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