Night Light of Erechim (Rio Grande do Sul) from space (Brazil) Src. Average luminocity for 10x10km area is 55.2758% and for 50x50km: 3.8826%.
Square area 10x10 km:
 16.67%
 13.49%
 8.13%
 5.95%
 5.36%
 1.39%
 1.19%
 6.75%
 14.09%
 23.81%
 3.17%Square area 50x50 km:
 0.68%
 0.54%
 0.69%
 0.51%
 0.34%
 0.3%
 0.31%
 0.47%
 0.83%
 2.96%
 92.36%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
27° 0' 35.7" South, 52° 58' 42.7" West
27° 38' 4.6" South, 52° 16' 31.4" West
28° 15' 20.7" South, 51° 34' 20.2" West
Some cities around Erechim sort by population:
• Passo Fundo
		71 km =44.1 mi, 
190°
• Chapecó
		68.8 km =42.8 mi, 
330°
• Concórdia
		50.8 km =31.6 mi, 
28°
• Xanxerê
		85.2 km =52.9 mi, 
351°
• Capinzal
		73 km =45.4 mi, 
63°
• Sarandi
		72.4 km =45 mi, 
241°
• Tapejara
		54.6 km =33.9 mi, 
151°
• Sananduva
		57.9 km =36 mi, 
127°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016