Night Light of Kronstadt (St.-Petersburg) from space (Russia) Src. Average luminocity for 10x10km area is 31.5455% and for 50x50km: 23.6706%.
Square area 10x10 km:
 4.44%
 6.6%
 4.11%
 6.49%
 2.6%
 0.87%
 0%
 0.43%
 21.86%
 29.44%
 23.16%Square area 50x50 km:
 4.43%
 5.45%
 2.73%
 3.42%
 2.61%
 2.48%
 0.99%
 2.32%
 8.47%
 14.35%
 52.74%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
60° 20' 42.6" North, 29° 3' 48.8" East
59° 59' 43.5" North, 29° 46' 0" East
59° 38' 30.9" North, 30° 28' 11.3" East
Some cities around Kronstadt sort by population:
• Peterhof
		14.5 km =9 mi, 
149°
• Kurortnyy
		20.5 km =12.7 mi, 
22°
• Petrodvorets
		11.3 km =7 mi, 
170°
• Lomonosov
		9.9 km =6.2 mi, 
178°
• Sestroretsk
		15.8 km =9.8 mi, 
43°
• Ol’gino
		19.6 km =12.2 mi, 
153°
• Tarkhovka
		14 km =8.7 mi, 
55°
• Lebyazh’ye
		19.9 km =12.4 mi, 
259°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016