Night Light of Saint-Denis-en-Val (Centre) from space (France) Src. Average luminocity for 10x10km area is 49.8466% and for 50x50km: 9.2499%.
Square area 10x10 km:
 15.48%
 14.35%
 2.41%
 1.7%
 5.11%
 6.11%
 5.11%
 5.97%
 12.36%
 17.9%
 13.49%Square area 50x50 km:
 1.85%
 2.16%
 0.55%
 0.83%
 1.05%
 1.22%
 1.19%
 1.13%
 2.36%
 4.3%
 83.36%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
48° 20' 33.7" North, 1° 15' 46.4" East
47° 52' 23.6" North, 1° 57' 57.6" East
47° 23' 57.9" North, 2° 40' 8.9" East
Some cities around Saint-Denis-en-Val sort by population:
• Orléans
		5.7 km =3.5 mi, 
305°
• Olivet
		5.1 km =3.2 mi, 
256°
• Fleury-les-Aubrais
		7.6 km =4.7 mi, 
331°
• Saran
		10.9 km =6.8 mi, 
321°
• La Chapelle-Saint-Mesmin
		9.9 km =6.2 mi, 
278°
• Ingré
		11.5 km =7.1 mi, 
296°
• Chécy
		4.8 km =3 mi, 
61°
• La Ferté-Saint-Aubin
		17.5 km =10.9 mi, 
186°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016