Night Light of Cachan (Île-de-France) from space (France) Src. Average luminocity for 10x10km area is 99.7486% and for 50x50km: 76.8496%.
Square area 10x10 km:
 85.8%
 85.8% 13.64%
 13.64% 0.57%
 0.57% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0%Square area 50x50 km:
 36.59%
 36.59% 19.79%
 19.79% 5.6%
 5.6% 5.41%
 5.41% 5.89%
 5.89% 4.7%
 4.7% 6.01%
 6.01% 4.88%
 4.88% 3.8%
 3.8% 2.9%
 2.9% 4.43%
 4.43%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
49° 15' 26.5" North, 1° 38' 0.5" East
48° 47' 46.8" North, 2° 20' 11.8" East
48° 19' 51.6" North, 3° 2' 23" East
Some cities around Cachan sort by population:
• Villejuif
		1.7 km =1.1 mi,  98°
98°
• Bagneux
		2.1 km =1.3 mi,  267°
267°
• Montrouge
		2.8 km =1.7 mi,  323°
323°
• L'Haÿ-les-Roses
		1.5 km =0.9 mi,  189°
189°
• Le Kremlin-Bicêtre
		2.7 km =1.7 mi,  40°
40°
• Bourg-la-Reine
		2.4 km =1.5 mi,  215°
215°
• Arcueil
		0.5 km =0.3 mi,  323°
323°
• Gentilly
		1.9 km =1.2 mi,  11°
11°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016