Celestial hemisphere:  Northern  ·  Constellation: Coma Berenices (Com)  ·  Contains:  NGC 4712  ·  NGC 4725
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The effect of light pollution: 60min vs 11 hours, mikefulb
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The effect of light pollution: 60min vs 11 hours

Getting plate-solving status, please wait...
The effect of light pollution: 60min vs 11 hours, mikefulb
Powered byPixInsight

The effect of light pollution: 60min vs 11 hours

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Description

An astro buddy moved to a dark site and took 60 minutes of data with his 8 inch Newtonian which I compared to 671 min (>11 hours) from my not very dark location. Same camera and similar L filters. Since both are 8 inch OTAs with similar obstructions I think it is close to an apples to apples comparison.

60 min ON LEFT 671 min ON RIGHT

Just eyeballing it I'd say I had slightly better SNR so I'm probably around 7 or 8 times brighter here which jives with the SQM values for the locations.

Take away is an hour at his location is a night at mine.

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The effect of light pollution: 60min vs 11 hours, mikefulb

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Cloudy Nights