First SQM

Clearfield Observatory @ 21:44, mostly clear sky, 79% illuminated moon rising, clouds in east possibly suppress some light pollution, temp 17.7C, SQM: 20.16.

Be interesting to measure my sky with a truly dark night this week before OTSP.

Update: Tuesday 09/28, very good night sky during darkness window, best SQM: 20.88. Suspect it maybe possible I will see 21 readings late night in late fall, typically my best time of year.