Night Light of Libourne (Nouvelle-Aquitaine) from space (France) Src. Average luminocity for 10x10km area is 26.7222% and for 50x50km: 15.0711%.
Square area 10x10 km:
 3.17%
 3.33%
 2.7%
 1.75%
 5.24%
 3.81%
 2.7%
 4.13%
 2.7%
 52.7%
 17.78%Square area 50x50 km:
 2.07%
 2.04%
 1.47%
 1.62%
 2.24%
 2.16%
 2.75%
 2.35%
 4.32%
 11.14%
 67.84%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
45° 24' 39.8" North, 0° 56' 49.5" West
44° 54' 55.1" North, 0° 14' 38.2" West
44° 24' 54.8" North, 0° 27' 33.1" East
Some cities around Libourne sort by population:
• Lormont
		22 km =13.7 mi, 
258°
• Cenon
		22.6 km =14 mi, 
253°
• Ambarès-et-Lagrave
		18.8 km =11.7 mi, 
270°
• Coutras
		15.7 km =9.8 mi, 
33°
• Saint-Loubès
		14.4 km =8.9 mi, 
270°
• Bassens
		21.5 km =13.4 mi, 
266°
• Carbon-Blanc
		20.4 km =12.7 mi, 
264°
• Artigues-près-Bordeaux
		22.7 km =14.1 mi, 
251°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016