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Monitoring the night sky
At the Southside of the city Utrecht, two light measuring devices were installed in October 2009: SQM-LE of Unihedron and a Lichtmeter Mark 2.3. Both measure the light of the night sky every night. The SQM-LE ( at the right on the picture above) is locked in a cylinder with a transparent deck, so it can measure in all weather situations. The SQM-LE measures the point straight up (zenith). The Lichtmeter Mark 2.3 ( left at the picture) was self-sealed to measure permanently. It measures the entire sky, during both night and day. Each month the results are publicized. |
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Results
Explanation of the results < /a> 2011 2010 total 2009 from oktober |
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Sotto le Stelle, |
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