Night Light of Paços de Ferreira (Porto) from space (Portugal) Src. Average luminocity for 10x10km area is 80.2062% and for 50x50km: 62.9711%.
Square area 10x10 km:
 11.69%
 11.69% 25.49%
 25.49% 16.56%
 16.56% 22.73%
 22.73% 12.18%
 12.18% 5.19%
 5.19% 5.36%
 5.36% 0.81%
 0.81% 0%
 0% 0%
 0% 0%
 0%Square area 50x50 km:
 12.91%
 12.91% 12.03%
 12.03% 7.99%
 7.99% 10.38%
 10.38% 13.28%
 13.28% 10.98%
 10.98% 9.3%
 9.3% 7.66%
 7.66% 7.19%
 7.19% 6.02%
 6.02% 2.26%
 2.26%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
41° 48' 10.3" North, 9° 4' 45.5" West
41° 16' 35.7" North, 8° 22' 34.2" West
40° 44' 45.6" North, 7° 40' 23" West
Some cities around Paços de Ferreira sort by population:
• Paredes
		8.8 km =5.5 mi,  154°
154°
• Rebordosa
		6.4 km =4 mi,  203°
203°
• Lordelo
		5.2 km =3.2 mi,  205°
205°
• Madalena
		7.6 km =4.7 mi,  152°
152°
• Castelões de Cepeda
		8.9 km =5.5 mi,  157°
157°
• Freamunde
		3.7 km =2.3 mi,  69°
69°
• Negrelos
		8.4 km =5.2 mi,  345°
345°
• São Miguel do Couto
		9.4 km =5.8 mi,  310°
310°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016