Light Pollution Meter

Simple solution for canon ef ef s focus and iris drive.

Light pollution meter.

The graph below shows data collected in a windowless room in the apogee building using an sq 640 light pollution sensor and an at 100 µcache bluetooth datalogger the light pollution sensor was placed in the back of the room about 25 feet 8 m from the door. The meter then converts that amount of light into units of magnitudes per square arc second. Ascom canon lens controller. Light pollution map for ios showing the pollution in the north part of western europe where i live.

A meter reading of 21 00 would indicate a very dark site while a reading of 16 00 would indicate a light polluted sky. It is exacerbated by excessive misdirected or obtrusive use of light but even carefully used light fundamentally alters natural conditions. Light pollution meter pro. The sq 640 light pollution sensor from apogee instruments can detect trace amounts of light from 340 to 1040 nm.

We can offer our controllers for. Due to light pollution the night sky over many of our cities is hundreds of times brighter than a natural starlit sky. Thus safe currently recommends an sec of two to three watts per meter for roads less than ten metres. 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.

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. At the same time a number of individuals and groups.