Night Light of Buenos Aires (Piura) from space (Peru) Src. Average luminocity for 10x10km area is 3.9897% and for 50x50km: 1.6236%.
Square area 10x10 km:
 0.41%
 0.41%
 0%
 1.65%
 0%
 0.21%
 0.62%
 0.83%
 0.83%
 0.83%
 94.21%Square area 50x50 km:
 0.09%
 0.1%
 0.47%
 0.15%
 0.15%
 0.18%
 0.34%
 0.51%
 0.21%
 0.17%
 97.62%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
4° 33' 37" South, 80° 40' 2.3" West
5° 15' 39" South, 79° 57' 51" West
5° 57' 38.1" South, 79° 15' 39.8" West
Some cities around Buenos Aires sort by population:
• Piura
		74.4 km =46.2 mi, 
275°
• Chulucanas
		28.9 km =18 mi, 
310°
• Tambo Grande
		56.2 km =34.9 mi, 
311°
• Pueblo Nuevo
		51.5 km =32 mi, 
169°
• Morropón
		8.3 km =5.2 mi, 
354°
• Las Lomas
		74.4 km =46.2 mi, 
335°
• Huancabamba
		56.9 km =35.4 mi, 
87°
• Ayabaca
		74.4 km =46.2 mi, 
21°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016