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Night Sky
This briefing summarizes the current state of knowledge about how the widespread and growing use of artificial light at night interacts with six key topics: the night sky (Section 1); wildlife and ecology (Section 2); human health (Section 3); public safety (Section 4); energy security and climate change (Section 5); and social justice (Section 6)....
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Sources : Who owns the night sky? https://www.darksky.org/who-owns-the-night-sky/ Megan Eaves https://drive.google.com/file/d/1ZELe7WT3m8sGG4-svrlRXdAPwfdy4lPx/view Excerpt: satcon2 community engagement working group: “The sky belongs to everyone. Space is a global commons. All people are impacted by changes in the sky. The sky is part of the environment. Ecosystems depend on the night sky and on each other.” Read more...
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Source: International Astronomical Union (IAU) The IAU, together with partner organisations, has submitted a new Working Paper to the United Nations Committee on the Peaceful Uses of Outer Space (COPUOS), seeking to protect dark and quiet skies from interference by human activities. The paper was accepted for discussion at the opening of the 59th session of the COPUOS...
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Source: https://physicstoday.scitation.org/do/10.1063/PT.6.2.20220209b/full/ In his 1965 book, Starlight Nights, amateur astronomer and renowned comet finder Leslie Peltier recalled looking down at Los Angeles from Mount Wilson Observatory and noting the city lights encroaching on the mountainside. He was also concerned about the reflection of sunlight off growing fields of space debris. He wrote, “I realize that I...
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Format: Book Describes the scientific and cultural value of the sky Illustrates the environmental damage of excess light Explains the relationship between astronomy and space technology Introduction This book takes a close look at our relationship with the sky, the stars, light and darkness. In particular, it examines how light pollution has interfered with the...
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Source: ScienceNews https://www.sciencenews.org/article/satellite-mega-constellations-night-sky-stars-simulations “Mega-constellations” from those satellites will be visible to the naked eye, simulations suggest By Lisa Grossman Companies like SpaceX and Amazon have launched hundreds of satellites into low orbits since 2019, with plans to launch thousands more in the works — a trend that’s alarming astronomers. The goal of these satellite “mega-constellations” is...
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Jun 30, 2021 Andy Lawrence This is a short promotional video for “Losing The Sky”, a short non-technical book about the threat to the sky from satellite mega-constellations. You can find the book at Amazon, Apple Books, and Google Play Books. To see a bit more about what the book is all about, go to...
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Li-Wei Hung, Sharolyn J. Anderson, Ashley Pipkin, Kurt Fristrup, Changes in night sky brightness after a countywide LED retrofit, Journal of Environmental Management, Volume 292, 2021, 112776, ISSN 0301-4797,https://doi.org/10.1016/j.jenvman.2021.112776.(https://www.sciencedirect.com/science/article/pii/S0301479721008380) Abstract The US National Park Service (NPS) Night Skies Program measured changes in sky brightness resulting from a countywide lighting retrofit project. The retrofit took place in Chelan County, a gateway...
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