Night Light of Valongo (Porto) from space (Portugal) Src. Average luminocity for 10x10km area is 81.6672% and for 50x50km: 59.0814%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
41° 42' 57" North, 9° 12' 6.1" West
41° 11' 19.8" North, 8° 29' 54.9" West
40° 39' 27.2" North, 7° 47' 43.6" West
Some cities around Valongo sort by population:
• Rio Tinto
5.2 km =3.2 mi, 257°
• Ermesinde
5.5 km =3.4 mi, 303°
• Fânzeres
3.5 km =2.2 mi, 227°
• São Pedro da Cova
5.1 km =3.2 mi, 181°
• Baguim do Monte
3.6 km =2.2 mi, 275°
• Campo
2.8 km =1.7 mi, 98°
• Sobrado
4.4 km =2.7 mi, 56°
• Gandra
5.6 km =3.5 mi, 75°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016