International Dark-Sky Association

International Dark SkyIDAInternational Dark Sky Parkinternational dark sky reserveInternational Dark-Sky Association (IDA)
The International Dark-Sky Association (IDA) is a United States-based non-profit organization incorporated in 1988 by founders David Crawford, a professional astronomer, and Tim Hunter, a physician/amateur astronomer.wikipedia
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Light pollution

light-pollutedglarelight
Light pollution is the result of outdoor lighting that is not properly shielded, allowing light to be directed into the eyes and the night sky.
In the 1980s a global dark-sky movement emerged with the founding of the International Dark-Sky Association (IDA).

Cherry Springs State Park

Cherry Springs State Park, Pennsylvania, United States, designated 2008
On June 11, 2007, the International Dark-Sky Association named it the second "International Dark Sky Park"; under optimum conditions the Milky Way casts a discernible shadow.

Death Valley National Park

Death ValleyDeath Valley, CaliforniaDeath Valley National Monument
Death Valley National Park, California, United States, designated 2013
In 2013, Death Valley National Park was designated as a dark sky park by the International Dark-Sky Association.

Hovenweep National Monument

HovenweepHovenweep CastleCutthroat Castle
Hovenweep National Monument, Utah and Colorado, United States, designated 2014
In July 2014, the International Dark-Sky Association designated Hovenweep an International Dark Sky Park.

Natural Bridges National Monument

Natural BridgesNatural Bridge
Natural Bridges National Monument, Utah, United States, designated 2006
In 2007, the International Dark-Sky Association named Natural Bridges the first International Dark-Sky Park, which is a designation that recognizes not only that the park has some of the darkest and clearest skies in all of the United States, but also that the park has made every effort to conserve the natural dark as a resource worthy of protection.

Skyglow

sky glowartificial skyglowcity lights reflecting upwards into the skies
Light that shines into the eyes is called glare and light shining into the night sky above the horizon causes skyglow.
Much discussion in the lighting industry and even by some dark-sky advocacy organizations (e.g. International Dark-Sky Association) of the sky glow consequences of replacing the currently prevalent high-pressure sodium roadway lighting systems with white LEDs neglects critical issues of human visual spectral sensitivity, or focuses exclusively on white LED light sources, or focuses concerns narrowly on the blue portion (

Warrumbungle National Park

Crater BluffWarrumbungle
Warrumbungle National Park, New South Wales, Australia, designated 2016
On 4 July 2016, the park was the first within Australia to be certified as a Dark Sky Park by the International Dark Sky Association.

Tim Hunter (astronomer)

Tim Hunter
The International Dark-Sky Association (IDA) is a United States-based non-profit organization incorporated in 1988 by founders David Crawford, a professional astronomer, and Tim Hunter, a physician/amateur astronomer.
In 1987, together with David Crawford, he founded the International Dark-Sky Association, which has grown to more than 10,000 members in 75 countries (as of 2007).

Dark-sky preserve

Dark Sky Parkdark sky preserveBeaver Hills Dark Sky Preserve
Dark-sky preserve
The International Dark-Sky Association (IDA) chooses reserve to avoid confusion with park, when using the initialisms "IDSR" (International Dark Sky Reserve) and "IDSP" (International Dark Sky Park).

Central Idaho Dark Sky Reserve

Central Idaho Dark Sky Reserve, Idaho, United States, designated 2017
The area was designated by International Dark-Sky Association.

Kerry International Dark-Sky Reserve

Kerry International Dark-Sky Reserve, County Kerry, Ireland, designated 2014
It was designated Ireland's first International Dark Sky Reserve by the International Dark-Sky Association (IDA).

Flagstaff, Arizona

FlagstaffFlagstaff, AZFlagstaff, Arizona Territory
Flagstaff, Arizona, United States, designated 2001
On October 24, 2001, Flagstaff was recognized by the International Dark-Sky Association as the world's first "International Dark-Sky City."

David Crawford (astronomer)

David Crawford
The International Dark-Sky Association (IDA) is a United States-based non-profit organization incorporated in 1988 by founders David Crawford, a professional astronomer, and Tim Hunter, a physician/amateur astronomer.
He co-founded the International Dark-Sky Association with Tim Hunter in 1988.

Dark-sky movement

dark skiesdark-skyDark Sky
IDA was the first organization in the dark-sky movement, and is currently the largest.
International Dark-Sky Association

Galloway Forest Park

Galloway ForestArt in Galloway Forest Park Programme
Galloway Forest Park, Scotland, United Kingdom, designated 2009
In November 2009 the International Dark-Sky Association conferred Dark Sky Park status on the Galloway Forest Park, the first area in the UK to be so designated.

Bon Accord, Alberta

Bon Accord
Bon Accord, Alberta, Canada, designated August 2015
The International Dark-Sky Association designated Bon Accord an International Dark Sky Community in August 2015 in recognition of the town's implementation of initiatives to preserve and enhance dark night skies over the community.

Westcliffe, Colorado

WestcliffeTown of Westcliffe
Westcliffe and Silver Cliff, Colorado, United States, designated 2015
Westcliffe, and neighboring Silver Cliff, Colorado are recognized as IDA International Dark Sky Communities by The International Dark-Sky Association.

Beverly Shores, Indiana

Beverly Shores
Beverly Shores, Indiana, United States, designated 2014
On June 24, 2014, the International Dark-Sky Association announced Beverley Shores as the world's seventh international dark sky community.

Silver Cliff, Colorado

Silver CliffHistory of Silver Cliff, ColoradoTown of '''Silver Cliff
Westcliffe and Silver Cliff, Colorado, United States, designated 2015
Silver Cliff and neighboring Westcliffe, Colorado are recognized as IDA International Dark Sky Communities by The International Dark-Sky Association.

Sark

Chief PleasChief Pleas of SarkGeography of Sark
Sark, Channel Islands, designated 2011
In January 2011, the International Dark-Sky Association designated Sark as Europe's first Dark Sky Community and the first Dark Sky Island in the world.

Warner and Swasey Observatory

CWRU Burrell SchmidtObservatory Park
Observatory Park, Ohio, United States, designated 2011
The park was designated as a dark sky park by the International Dark Sky Association.

The Headlands

The Headlands, Michigan, United States, designated 2011
In May 2011, Headlands Park was awarded International Dark Sky Park designation by the International Dark-Sky Association.

Commission for Dark Skies

Campaign for Dark Skies (CfDS)
It is run by the British Astronomical Association (BAA) and affiliated with the International Dark-Sky Association (IDA), and composed of a network of local officers (and other members) who try to improve lighting in their areas and advise local people.

Clayton Lake State Park

Clayton Lake
Clayton Lake State Park, New Mexico, United States, designated 2010
In 2010 the Clayton Lake State Park with the Star Point Observatory was designated by the International Dark-Sky Association as a Dark Sky Park.

Big Bend National Park

Big BendBig Bend Biosphere Reserve and National ParkBig Bend N.P.
Big Bend National Park, Texas, United States, designated 2012
In 2012, the park was designated an international dark-sky park by the International Dark-Sky Association.