File:L12 31March2009png.png

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current15:02, 11 June 2015Thumbnail for version as of 15:02, 11 June 20151,253 × 612 (46 KB)GuentherWuchterl (Talk | contribs)
22:59, 5 April 2009
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1,253 × 612 (46 KB)GuentherWuchterl (Talk | contribs)Measurements of Lightmeter L12 at Tautenburg. A very clear night with the half-moon shining before midnight and the illumination decreasing to 0.001 Lux later. Note the non-linear, daylight part of the lightmeter, that operates above the horizontal line i
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