Night Light of Erstein (Grand Est) from space (France) Src. Average luminocity for 10x10km area is 24.0781% and for 50x50km: 20.9357%.
Square area 10x10 km:
 2.84%
 4.69%
 1.99%
 2.7%
 0.99%
 1.28%
 1.56%
 2.27%
 5.26%
 52.27%
 24.15%Square area 50x50 km:
 4.68%
 4.22%
 1.41%
 1.39%
 2.01%
 1.94%
 2.14%
 3.32%
 5.25%
 17.24%
 56.41%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
48° 53' 17.5" North, 6° 57' 34.2" East
48° 25' 25.4" North, 7° 39' 45.4" East
47° 57' 17.9" North, 8° 21' 56.7" East
Some cities around Erstein sort by population:
• Illkirch-Graffenstaden
		12.3 km =7.6 mi, 
18°
• Lingolsheim
		14.9 km =9.3 mi, 
5°
• Obernai
		14.1 km =8.8 mi, 
288°
• Ostwald
		13.8 km =8.6 mi, 
14°
• Geispolsheim
		10.3 km =6.4 mi, 
354°
• Schwanau, DE
		9.7 km =6 mi, 
130°
• Barr
		15.9 km =9.9 mi, 
263°
• Benfeld
		7.8 km =4.8 mi, 
220°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016