Night Light of Châtillon (Île-de-France) from space (France) Src. Average luminocity for 10x10km area is 98.1918% and for 50x50km: 76.6506%.
Square area 10x10 km:
 72.73%
 72.73% 21.59%
 21.59% 1.99%
 1.99% 1.85%
 1.85% 1.42%
 1.42% 0.43%
 0.43% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0%Square area 50x50 km:
 36.68%
 36.68% 19.88%
 19.88% 5.66%
 5.66% 5.39%
 5.39% 5.76%
 5.76% 4.7%
 4.7% 5.86%
 5.86% 4.61%
 4.61% 3.49%
 3.49% 2.18%
 2.18% 5.78%
 5.78%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
49° 15' 48.2" North, 1° 35' 25.2" East
48° 48' 8.6" North, 2° 17' 36.5" East
48° 20' 13.7" North, 2° 59' 47.7" East
Some cities around Châtillon sort by population:
• Issy-les-Moulineaux
		2.4 km =1.5 mi,  330°
330°
• Clamart
		1.9 km =1.2 mi,  271°
271°
• Bagneux
		1.3 km =0.8 mi,  125°
125°
• Montrouge
		2.1 km =1.3 mi,  44°
44°
• Malakoff
		2 km =1.2 mi,  13°
13°
• Vanves
		2.4 km =1.5 mi,  354°
354°
• Fontenay-aux-Roses
		1 km =0.6 mi,  182°
182°
• Le Plessis-Robinson
		2.2 km =1.4 mi,  227°
227°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016