Night Light of Courtry (Île-de-France) from space (France) Src. Average luminocity for 10x10km area is 82.8253% and for 50x50km: 54.9685%.
Square area 10x10 km:
 33.52%
 33.52% 25.14%
 25.14% 7.81%
 7.81% 4.55%
 4.55% 6.25%
 6.25% 11.08%
 11.08% 5.68%
 5.68% 5.82%
 5.82% 0.14%
 0.14% 0%
 0% 0%
 0%Square area 50x50 km:
 26.9%
 26.9% 11.78%
 11.78% 3.31%
 3.31% 2.79%
 2.79% 3.57%
 3.57% 3.55%
 3.55% 3.33%
 3.33% 4.21%
 4.21% 7.09%
 7.09% 15.18%
 15.18% 18.29%
 18.29%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
49° 22' 44.3" North, 1° 54' 4.2" East
48° 55' 8.6" North, 2° 36' 15.5" East
48° 27' 17.6" North, 3° 18' 26.7" East
Some cities around Courtry sort by population:
• Chelles
		4.3 km =2.7 mi,  191°
191°
• Livry-Gargan
		4.5 km =2.8 mi,  270°
270°
• Tremblay-en-France
		4.3 km =2.7 mi,  322°
322°
• Clichy-sous-Bois
		3.9 km =2.4 mi,  255°
255°
• Villeparisis
		2.7 km =1.7 mi,  16°
16°
• Montfermeil
		3 km =1.9 mi,  218°
218°
• Vaires-sur-Marne
		5.4 km =3.4 mi,  151°
151°
• Vaujours
		2.7 km =1.7 mi,  297°
297°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016