Globe At Night: Working for Darker Skies

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The GLOBE at Night program, hosted by the U.S. National Optical Astronomy Observatory (NOAO), is an international citizen-­‐science campaign to raise public awareness of the  impact of light pollution. The worldwide campaign invites citizen-­‐scientists to record the  brightness of the night sky by visually matching the appearance of a constellation like  Orion with star maps of progressively fainter stars or using meters to obtain more precise  measurements. Measurements are submitted to a central website by computer or smart  phone. From these data an interactive map of all worldwide observations is created. Every  year, NOAO is adding more opportunities for participation by providing campaigns at  different times of year and creating Web applications in different languages for smart  phones. Over the past 7 years of 10­‐day campaigns, people in 115 countries have  contributed over 83,000 measurements, making GLOBE at Night the most successful, light  pollution citizen‐science campaign to date. There are 5 GLOBE at Night campaigns in 2013:  January 3‐ 12, January 31 ‐ February 9, March 3 ­‐ 12, 2013, March 31 ‐ April 9, and April 29‐ May 8. (See for more information.) 


Check out the web application data submission process. The GLOBE at Night website is easy to use, comprehensive and holds an abundance of background information. The database is usable for comparisons with a variety of other databases, like how light pollution affects the foraging habits of bats.

Learn more about GLOBE at Night from the 365 Days of Astronomy Podcasts on January 1, February 1 and March 1 at Hear our latest podcast on GLOBE at Night in the March 30 episode.

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One Response to Globe At Night: Working for Darker Skies

  1. Pingback: Working for Dark Skies: Globe at Night Starts Sunday | Citizen Scientists League

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