Night Light of Františkovy Lázně (Karlovarský kraj) from space (Czech Republic) Src. Average luminocity for 10x10km area is 10.1965% and for 50x50km: 2.9721%.
Square area 10x10 km:
 3.07%
 2.54%
 0.13%
 0.4%
 0.13%
 0.4%
 0.53%
 1.34%
 1.07%
 6.95%
 83.42%Square area 50x50 km:
 0.59%
 0.56%
 0.13%
 0.24%
 0.22%
 0.24%
 0.42%
 0.63%
 0.37%
 1.28%
 95.32%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
50° 34' 8.5" North, 11° 38' 55" East
50° 7' 13.2" North, 12° 21' 6.3" East
49° 40' 2.6" North, 13° 3' 17.5" East
Some cities around Františkovy Lázně sort by population:
• Cheb
		4.8 km =3 mi, 
160°
• Selb, DE
		16.7 km =10.4 mi, 
289°
• Aš
		16 km =9.9 mi, 
315°
• Waldsassen, DE
		13.6 km =8.5 mi, 
194°
• Mitterteich, DE
		20.4 km =12.7 mi, 
202°
• Arzberg, DE
		13.7 km =8.5 mi, 
239°
• Habartov
		15.8 km =9.8 mi, 
63°
• Kynšperk nad Ohří
		12.7 km =7.9 mi, 
90°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016