Night Light of Villebon-sur-Yvette (Île-de-France) from space (France) Src. Average luminocity for 10x10km area is 83.439% and for 50x50km: 59.1551%.
Square area 10x10 km:
 28.57%
 28.57% 26.79%
 26.79% 7.59%
 7.59% 10.27%
 10.27% 11.9%
 11.9% 5.06%
 5.06% 8.78%
 8.78% 0.89%
 0.89% 0.15%
 0.15% 0%
 0% 0%
 0%Square area 50x50 km:
 27.91%
 27.91% 13.87%
 13.87% 3.98%
 3.98% 4.15%
 4.15% 4.61%
 4.61% 3.61%
 3.61% 4.74%
 4.74% 4.31%
 4.31% 5.43%
 5.43% 6.22%
 6.22% 21.17%
 21.17%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
49° 10' 4.1" North, 1° 32' 13.5" East
48° 42' 21.4" North, 2° 14' 24.7" East
48° 14' 23.2" North, 2° 56' 36" East
Some cities around Villebon-sur-Yvette sort by population:
• Massy
		3.9 km =2.4 mi,  53°
53°
• Palaiseau
		1.5 km =0.9 mi,  27°
27°
• Longjumeau
		5.1 km =3.2 mi,  103°
103°
• Orsay
		4 km =2.5 mi,  253°
253°
• Verrières-le-Buisson
		4.9 km =3 mi,  24°
24°
• Bures-sur-Yvette
		5.1 km =3.2 mi,  262°
262°
• Igny
		4.4 km =2.7 mi,  344°
344°
• Saulx-les-Chartreux
		2.6 km =1.6 mi,  130°
130°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016