02/11/2010
Croatian Students Analyze Effects of City Lights with Five Years of GLOBE at Night Data
Since 2006, GLOBE has invited students around the world to take part in GLOBE at Night, a global campaign to measure night sky brightness. Participants choose a clear night during the two week campaign each year to go outside and observe the constellation Orion between 8 and 10pm local time, match the appearance of their sky with one of seven GLOBE Magnitude Charts, and enter their observations into the GLOBE at Night website. From this international-scale comparison, students learn about the effects of light pollution, defined as any unnecessary, useless emission of light in space outside the zone that needs to be illuminated. Often, light pollution occurs due to the use of bad lighting fixtures and incorrectly set lighting.
>>
