Night Light of Arruda dos Vinhos (Lisbon) from space (Portugal) Src. Average luminocity for 10x10km area is 41.3279% and for 50x50km: 37.1835%.
Square area 10x10 km:
 0.16%
 4.55%
 4.06%
 5.36%
 7.47%
 9.09%
 9.9%
 21.59%
 25%
 12.82%
 0%Square area 50x50 km:
 6.77%
 6.21%
 3.65%
 3.59%
 5.88%
 5.85%
 5.73%
 8.19%
 11.78%
 17.98%
 24.37%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
39° 31' 42.8" North, 9° 46' 50.1" West
38° 59' 2.8" North, 9° 4' 38.9" West
38° 26' 7.6" North, 8° 22' 27.6" West
Some cities around Arruda dos Vinhos sort by population:
• Póvoa de Santa Iria
		13.7 km =8.5 mi, 
175°
• Vila Franca de Xira
		8.2 km =5.1 mi, 
112°
• Vialonga
		12.5 km =7.8 mi, 
180°
• Carregado
		9.7 km =6 mi, 
63°
• Alenquer
		9.7 km =6 mi, 
37°
• Castanheira do Ribatejo
		9 km =5.6 mi, 
83°
• Alhandra
		8.7 km =5.4 mi, 
136°
• Milharado
		11.3 km =7 mi, 
248°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016