Night Light of Landerneau (Brittany) from space (France) Src. Average luminocity for 10x10km area is 9.3452% and for 50x50km: 5.11%.
Square area 10x10 km:
 0.57%
 2.27%
 0.28%
 1.99%
 1.14%
 1.28%
 0.43%
 2.41%
 0.99%
 0.57%
 88.07%Square area 50x50 km:
 0.98%
 1.15%
 0.25%
 0.4%
 0.6%
 0.46%
 0.5%
 0.57%
 1.67%
 3.17%
 90.24%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
48° 55' 0.2" North, 4° 57' 20.3" West
48° 27' 9.1" North, 4° 15' 9.1" West
47° 59' 2.5" North, 3° 32' 57.8" West
Some cities around Landerneau sort by population:
• Brest
		18.6 km =11.6 mi, 
248°
• Guipavas
		10.8 km =6.7 mi, 
259°
• Plougastel-Daoulas
		12.7 km =7.9 mi, 
221°
• Le Relecq-Kerhuon
		11.6 km =7.2 mi, 
244°
• Landivisiau
		14.9 km =9.3 mi, 
65°
• Plabennec
		14 km =8.7 mi, 
293°
• Lesneven
		14.3 km =8.9 mi, 
339°
• Gouesnou
		15.6 km =9.7 mi, 
270°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016