Hemisphere:  Northern  ·  Contains:  NGC 4712  ·  NGC 4725
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The effect of light pollution: 60min vs 11 hours, 



    
        

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

Technical card


Astrometry.net job: 3479668

RA center: 12h 51' 9"

DEC center: +25° 28' 58"

Pixel scale: 1.673 arcsec/pixel

Orientation: 359.566 degrees

Field radius: 0.459 degrees


Resolution: 1818x769

Data source: Backyard

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



    
        

            mikefulb

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