Night Light of Ermesinde (Porto) from space (Portugal) Src. Average luminocity for 10x10km area is 93.9302% and for 50x50km: 56.5236%.
Square area 10x10 km:
 64.77%
 64.77% 17.21%
 17.21% 4.55%
 4.55% 4.87%
 4.87% 4.87%
 4.87% 2.27%
 2.27% 1.46%
 1.46% 0%
 0% 0%
 0% 0%
 0% 0%
 0%Square area 50x50 km:
 15.12%
 15.12% 12.53%
 12.53% 6.94%
 6.94% 9.1%
 9.1% 10.15%
 10.15% 6.73%
 6.73% 5.75%
 5.75% 4.87%
 4.87% 4.81%
 4.81% 5.88%
 5.88% 18.12%
 18.12%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
41° 44' 35.9" North, 9° 15' 22.7" West
41° 12' 59.5" North, 8° 33' 11.4" West
40° 41' 7.8" North, 7° 51' 0.2" West
Some cities around Ermesinde sort by population:
• Rio Tinto
		4.2 km =2.6 mi,  187°
187°
• Águas Santas
		2 km =1.2 mi,  249°
249°
• São Mamede de Infesta
		5.6 km =3.5 mi,  240°
240°
• Fânzeres
		5.8 km =3.6 mi,  160°
160°
• Valongo
		5.5 km =3.4 mi,  123°
123°
• Baguim do Monte
		2.9 km =1.8 mi,  159°
159°
• Alfena
		3.3 km =2.1 mi,  46°
46°
• Pedrouços
		4.1 km =2.5 mi,  221°
221°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016