Night Light of Trappes (Île-de-France) from space (France) Src. Average luminocity for 10x10km area is 71.4517% and for 50x50km: 49.1499%.
Square area 10x10 km:
 22.44%
 22.44% 25.85%
 25.85% 5.68%
 5.68% 2.41%
 2.41% 5.54%
 5.54% 6.53%
 6.53% 7.24%
 7.24% 11.79%
 11.79% 12.07%
 12.07% 0.43%
 0.43% 0%
 0%Square area 50x50 km:
 18.88%
 18.88% 11.93%
 11.93% 4.01%
 4.01% 3.8%
 3.8% 4.67%
 4.67% 3.98%
 3.98% 5.12%
 5.12% 4.19%
 4.19% 5.72%
 5.72% 9.4%
 9.4% 28.29%
 28.29%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
49° 14' 7.3" North, 1° 18' 52.8" East
48° 46' 26.9" North, 2° 1' 4.1" East
48° 18' 31" North, 2° 43' 15.3" East
Some cities around Trappes sort by population:
• Saint-Quentin-en-Yvelines
		0.3 km =0.2 mi,  162°
162°
• Montigny-le-Bretonneux
		1.5 km =0.9 mi,  125°
125°
• Guyancourt
		4.1 km =2.5 mi,  91°
91°
• Élancourt
		4.7 km =2.9 mi,  283°
283°
• Saint-Cyr-l’École
		4.6 km =2.9 mi,  53°
53°
• Voisins-le-Bretonneux
		3 km =1.9 mi,  126°
126°
• Bois-d’Arcy
		2.9 km =1.8 mi,  7°
7°
• Magny-les-Hameaux
		4.7 km =2.9 mi,  136°
136°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016