Night Light of Kamennogorsk (Leningradskaya Oblast') from space (Russia) Src. Average luminocity for 10x10km area is 16.2438% and for 50x50km: 8.3314%.
Square area 10x10 km:
 2.27%
 2.58%
 2.58%
 2.69%
 3.41%
 0.41%
 0%
 0%
 0%
 16.63%
 69.42%Square area 50x50 km:
 0.5%
 0.74%
 0.57%
 1.13%
 2.79%
 1.77%
 1.31%
 0.99%
 1.86%
 6.88%
 81.46%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
61° 17' 38.6" North, 28° 25' 50.8" East
60° 57' 16.2" North, 29° 8' 2.1" East
60° 36' 40.7" North, 29° 50' 13.3" East
Some cities around Kamennogorsk sort by population:
• Vyborg
		34.4 km =21.4 mi, 
216°
• Lappeenranta, FI
		52.2 km =32.4 mi, 
282°
• Imatra, FI
		31.7 km =19.7 mi, 
319°
• PriozĂ«rsk
		54.5 km =33.9 mi, 
80°
• Svetogorsk
		22.8 km =14.2 mi, 
320°
• Joutseno, FI
		38.3 km =23.8 mi, 
298°
• Sovetskiy
		52.4 km =32.6 mi, 
208°
• Ruokolahti, FI
		40 km =24.9 mi, 
336°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016