The GLOBE at Night program, hosted by the U.S. National Optical Astronomy Observatory (NOAO), is an international citizen-Ââ€science campaign to raise public awareness of the Â impact of light pollution. The worldwide campaign invites citizen-Ââ€scientists to record the Â brightness of the night sky by visually matching the appearance of a constellation like Â Orion with star maps of progressively fainter stars or using meters to obtain more precise Â measurements. Measurements are submitted to a central website by computer or smart Â phone. From these data an interactive map of all worldwide observations is created. Every Â year, NOAO is adding more opportunities for participation by providing campaigns at Â different times of year and creating Web applications in different languages for smart Â phones. Over the past 7 years of 10Ââ€day campaigns, people in 115 countries have Â contributed over 83,000 measurements, making GLOBE at Night the most successful, light Â pollution citizenâ€science campaign to date. There are 5 GLOBE at Night campaigns in 2013: Â January 3â€ 12, January 31 â€ February 9, March 3 Ââ€ 12, 2013, March 31 â€ April 9, and April 29â€ May 8. (See www.globeatnight.org for more information.)Â
Check out theÂ 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 atÂ http://365daysofastronomy.org. Hear our latest podcast on GLOBE at Night in theÂ March 30 episode.