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The dark-sky movement is a campaign to reduce light pollution.The advantages of reducing light pollution include an increased number of stars visible at night, reducing the effects of electric lighting on the environment, improving the well-being, [1] health [2] and safety [3] of people and wildlife, [4] and cutting down on energy usage.
International Dark Sky Week (formerly the National Dark Sky Week) is held during the week of the new moon in April, [1] [2] when people worldwide may turn off their lights to observe the beauty of the night sky without light pollution. This event was founded in 2003 by high school student Jennifer Barlow of Midlothian, Virginia. [3]
DarkSky International, formerly the International Dark-Sky Association (IDA), [1] is a United States–based non-profit organization incorporated in 1988 by founders David Crawford, a professional astronomer, and Tim Hunter, a physician and amateur astronomer.
The Dutch brass chandeliers have distinctive features – a large brass sphere at the end of a central ball stem, and six curved low-swooping arms. The globe helps to keep the chandelier upright and reflect the light from candles, and the arms are curved downward to bring the candles to the level of the sphere to allow for maximum reflection ...
The night sky brightness in the reserve ranks at a level 2 on the nine-level Bortle Dark-Sky Scale, representing a truly dark site with high astronomical observability of celestial objects. [5] [6] The low level of light pollution in the area of the reserve has been supported by a lighting by-law that was included in the Mackenzie District Plan ...
Poloniny Dark-Sky Park is located in the northeast of the Slovak Republic on the border with Poland and Ukraine.The territory of the park itself is defined by area of the Poloniny National Park (298.05 km 2) and a buffer zone (109.73 km 2) and municipal territories of Kolonica, Ladomirov, Kalná Roztoka, Klenová, Ruská Volová (77.41 km 2).
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