Night Light of Gubakha (Perm) from space (Russia) Src. Average luminocity for 10x10km area is 14.4195% and for 50x50km: 1.4431%.
Square area 10x10 km:
 3.97%
 3.74%
 1.02%
 1.47%
 0.23%
 0.45%
 0%
 0.45%
 0%
 17.57%
 71.09%Square area 50x50 km:
 0.36%
 0.3%
 0.1%
 0.19%
 0.05%
 0.11%
 0.07%
 0.08%
 0.03%
 1.24%
 97.47%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
59° 12' 2" North, 56° 51' 0.5" East
58° 50' 19" North, 57° 33' 11.7" East
58° 28' 22.3" North, 58° 15' 23" East
Some cities around Gubakha sort by population:
• Berezniki
		76 km =47.2 mi, 
326°
• Chusovoy
		61.6 km =38.3 mi, 
165°
• Kizel
		23.8 km =14.8 mi, 
13°
• Aleksandrovsk
		35.5 km =22.1 mi, 
1°
• Gornozavodsk
		68 km =42.3 mi, 
139°
• Gremyachinsk
		35.4 km =22 mi, 
150°
• Yayva
		57.7 km =35.9 mi, 
343°
• Ugleural’skiy
		12 km =7.5 mi, 
11°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016