Thursday, 4 June 2009

Sky Quality Monitor

I now have the Sky Quality Monitor installed.

This little unit basically monitors the darkness of the sky. It measures it in Magnitudes per square arcsecond (MPSAS) and you can convert this to a theoretical Naked Eye Limiting Magnitude (NELM). The data is sent via a network connection to the PC and software it set-up to tek a reading every 5 minutes when it's dark.

The results are interesting - you can see the influence of the moon and cloud cover. Here's last night's data.....

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