Night Light of Viseu (Pará) from space (Brazil) Src. Average luminocity for 10x10km area is 5.9697% and for 50x50km: 0.8205%.
Square area 10x10 km:
 0%
 0.87%
 2.38%
 1.08%
 0.87%
 0.87%
 0%
 0%
 0.87%
 0%
 93.07%Square area 50x50 km:
 0%
 0.14%
 0.16%
 0.04%
 0.07%
 0.24%
 0.37%
 0.07%
 0.08%
 0%
 98.82%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
0° 29' 37.1" South, 46° 50' 35.3" West
1° 11' 48" South, 46° 8' 24" West
1° 53' 58.3" South, 45° 26' 12.8" West
Some cities around Viseu sort by population:
• Bragança
		71.3 km =44.3 mi, 
282°
• Capanema
		115.7 km =71.9 mi, 
270°
• Augusto Corrêa
		58.4 km =36.3 mi, 
289°
• Maracaçumé
		96.2 km =59.8 mi, 
167°
• Carutapera
		13.3 km =8.3 mi, 
89°
• Turiaçu
		99.9 km =62.1 mi, 
121°
• Cândido Mendes
		54.7 km =34 mi, 
120°
• Ourém
		115.3 km =71.6 mi, 
249°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016