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At 7 of the sites in our new #LightPollution study, the sky was always at least 10 times brighter than a starlit sky: http://t.co/t7247Qb7sr
— Christopher Kyba (@skyglowberlin) February 12, 2015
At 30 of the sites, the sky was at least twice as bright as a starlit sky at least 95% of the time: http://t.co/t7247Qb7sr
— Christopher Kyba (@skyglowberlin) February 12, 2015
The relationship between typical brightness of overcast and clear skies changes at city limits http://t.co/t7247Qb7sr pic.twitter.com/xy9iUIazsx
— Christopher Kyba (@skyglowberlin) February 12, 2015
Here we compare the sky brightness as the moon rises over Berlin and IDSR Westhavelland. In Berlin, the sky darkens! pic.twitter.com/g82CQ59afi
— Christopher Kyba (@skyglowberlin) February 12, 2015
@skyglowberlin This is because the city gets darker as the night goes on, and Berlin's glow is so much brighter than the glow from the moon.
— Christopher Kyba (@skyglowberlin) February 12, 2015
Here we compare the entire moon-free data set for 2 sites in 1 plot. NSU is how bright it is compared to a starry sky pic.twitter.com/0adxUvWl61
— Christopher Kyba (@skyglowberlin) February 12, 2015
The top plot is Kitt Peak in Arizona, the bottom is near the center of Berlin.
— Christopher Kyba (@skyglowberlin) February 12, 2015
In areas without artificial light, overcast nights are WAY brighter when the moon is up (1/2) http://t.co/t7247Qb7sr pic.twitter.com/MZFgAk1nsB
— Christopher Kyba (@skyglowberlin) February 12, 2015
In contrast, in areas with a lot of light pollution, the moon's effect on overcast nights is almost absent (2/2) pic.twitter.com/ePxDixPbdm
— Christopher Kyba (@skyglowberlin) February 12, 2015
You can read the whole article for free! It's published #openaccess at @SciReports: http://t.co/t7247Qb7sr
— Christopher Kyba (@skyglowberlin) February 12, 2015
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