The meter then converts that amount of light into units of magnitudes per square arc second.
Light pollution meter.
Due to light pollution the night sky over many of our cities is hundreds of times brighter than a natural starlit sky.
It is exacerbated by excessive misdirected or obtrusive use of light but even carefully used light fundamentally alters natural conditions.
For ios there is a nice app called dark sqm meter that allows you to use your phone as an sqm device to measure the darkness of your sky.
Light pollution map for ios showing the pollution in the north part of western europe where i live.
At the same time a number of individuals and groups.
Light pollution is the presence of anthropogenic and artificial light in the night environment.
Thus safe currently recommends an sec of two to three watts per meter for roads less than ten metres.
The introduction of the sky quality meter and the international year of astronomy lightmeter have led to a large number of permanent online skyglow monitoring stations.
Ascom canon lens controller.
Simple solution for canon ef ef s focus and iris drive.
The larger the number read on the meter display the darker the sky.
Light pollution meter pro.
We can offer our controllers for.
A meter reading of 21 00 would indicate a very dark site while a reading of 16 00 would indicate a light polluted sky.