Night Light of Arcos (Braga) from space (Portugal) Src. Average luminocity for 10x10km area is 74.852% and for 50x50km: 50.2535%.
Square area 10x10 km:
 21.43%
 21.43% 18.54%
 18.54% 7.14%
 7.14% 13.27%
 13.27% 10.2%
 10.2% 8.5%
 8.5% 11.73%
 11.73% 9.18%
 9.18% 0%
 0% 0%
 0% 0%
 0%Square area 50x50 km:
 3.76%
 3.76% 8.96%
 8.96% 7.22%
 7.22% 8.37%
 8.37% 12.64%
 12.64% 11.74%
 11.74% 10.02%
 10.02% 7.61%
 7.61% 9.44%
 9.44% 9.28%
 9.28% 10.97%
 10.97%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
42° 2' 46.1" North, 9° 7' 28.7" West
41° 31' 18.7" North, 8° 25' 17.4" West
40° 59' 35.8" North, 7° 43' 6.2" West
Some cities around Arcos sort by population:
• Braga
		3.2 km =2 mi,  2°
2°
• Semelhe
		5 km =3.1 mi,  316°
316°
• Real
		4.5 km =2.8 mi,  335°
335°
• Gondizalves
		3.6 km =2.2 mi,  307°
307°
• Aveleda
		3.8 km =2.4 mi,  268°
268°
• Oliveira
		6.3 km =3.9 mi,  219°
219°
• Caldas das Taipas
		7.4 km =4.6 mi,  124°
124°
• Merelim
		8 km =5 mi,  332°
332°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016