Night Light of Vänersborg (Västra Götaland) from space (Sweden) Src. Average luminocity for 10x10km area is 29.2279% and for 50x50km: 5.4537%.
Square area 10x10 km:
 4.54%
 4.99%
 4.99%
 3.06%
 2.83%
 2.49%
 2.95%
 2.04%
 11.45%
 27.55%
 33.11%Square area 50x50 km:
 1.24%
 1.32%
 0.35%
 0.36%
 0.27%
 0.39%
 0.43%
 0.54%
 2.14%
 3.95%
 89.01%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
58° 44' 50.9" North, 11° 37' 13" East
58° 22' 50.7" North, 12° 19' 24.2" East
58° 0' 36.7" North, 13° 1' 35.5" East
Some cities around Vänersborg sort by population:
• Trollhättan
		11 km =6.8 mi, 
190°
• Uddevalla
		22.5 km =14 mi, 
260°
• Alingsås
		51.6 km =32.1 mi, 
166°
• Kungälv
		60.2 km =37.4 mi, 
199°
• Lidköping
		50.5 km =31.4 mi, 
74°
• Stenungsund
		45.4 km =28.2 mi, 
220°
• Lysekil
		53.2 km =33.1 mi, 
257°
• Vårgårda
		47.6 km =29.6 mi, 
143°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016