Night Light of Kartuzy (Pomerania) from space (Poland) Src. Average luminocity for 10x10km area is 7.3409% and for 50x50km: 9.8552%.
Square area 10x10 km:
 0.63%
 1.13%
 1.13%
 1.13%
 0.5%
 1.5%
 1.13%
 1.38%
 0%
 0.5%
 90.98%Square area 50x50 km:
 2.33%
 2.56%
 0.46%
 0.72%
 0.74%
 1.01%
 1.43%
 2.4%
 2.51%
 3.43%
 82.42%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
54° 44' 31.8" North, 17° 29' 39.2" East
54° 20' 3.3" North, 18° 11' 50.5" East
53° 55' 20" North, 18° 54' 1.7" East
Some cities around Kartuzy sort by population:
• Gdańsk
		29.2 km =18.1 mi, 
86°
• Rumia
		29.1 km =18.1 mi, 
25°
• Sopot
		26.4 km =16.4 mi, 
63°
• Kościerzyna
		27.4 km =17 mi, 
210°
• Wielki Kack
		24 km =14.9 mi, 
51°
• Sierakowice
		19.8 km =12.3 mi, 
273°
• Luzino
		26.4 km =16.4 mi, 
347°
• Żukowo
		10.9 km =6.8 mi, 
85°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016