Night Light of Sztum (Pomerania) from space (Poland) Src. Average luminocity for 10x10km area is 5.041% and for 50x50km: 3.9432%.
Square area 10x10 km:
 1.72%
 1.19%
 0.26%
 0.4%
 0.13%
 0.53%
 0%
 0.53%
 0%
 0.13%
 95.11%Square area 50x50 km:
 0.82%
 0.78%
 0.32%
 0.34%
 0.27%
 0.28%
 0.36%
 0.39%
 0.46%
 3.57%
 92.39%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
54° 19' 58" North, 18° 19' 39.4" East
53° 55' 14.8" North, 19° 1' 50.6" East
53° 30' 16.7" North, 19° 44' 1.9" East
Some cities around Sztum sort by population:
• Tczew
		25.2 km =15.7 mi, 
319°
• Malbork
		12.8 km =8 mi, 
358°
• Kwidzyn
		22.7 km =14.1 mi, 
196°
• Prabuty
		21.7 km =13.5 mi, 
148°
• Pelplin
		21.8 km =13.5 mi, 
272°
• Gniew
		16.6 km =10.3 mi, 
235°
• Susz
		30.2 km =18.8 mi, 
138°
• DzierzgoĆ
		20.7 km =12.9 mi, 
89°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016