Night Light of Valongo (Aveiro) from space (Portugal) Src. Average luminocity for 10x10km area is 36.1412% and for 50x50km: 25.7557%.
Square area 10x10 km:
1.3%
2.44%
3.25%
5.03%
9.74%
7.79%
6.33%
11.36%
20.78%
19.97%
12.01%Square area 50x50 km:
1.77%
3.5%
2.84%
2.96%
4.53%
5.51%
4.16%
6.79%
13.08%
13.81%
41.05%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
41° 8' 53.8" North, 9° 9' 11.2" West
40° 37' 0" North, 8° 27' 0" West
40° 4' 50.9" North, 7° 44' 48.7" West
Some cities around Valongo sort by population:
• Aveiro
16.8 km =10.4 mi,
280°
• Esgueira
15.6 km =9.7 mi,
283°
• Águeda
4.4 km =2.7 mi,
173°
• Albergaria-a-Velha
8.9 km =5.5 mi,
343°
• Aradas
16.2 km =10.1 mi,
271°
• Oiã
11.1 km =6.9 mi,
222°
• Oliveira do Bairro
11.9 km =7.4 mi,
198°
• Eixo
10.1 km =6.3 mi,
276°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016