Night Light of Siverskiy (Leningradskaya Oblast') from space (Russia) Src. Average luminocity for 10x10km area is 5.5942% and for 50x50km: 3.3241%.
Square area 10x10 km:
 0.54%
 0.32%
 2.38%
 1.62%
 0.32%
 0%
 0%
 0%
 0%
 0%
 94.81%Square area 50x50 km:
 0.62%
 0.65%
 0.45%
 0.46%
 0.44%
 0.35%
 0.03%
 0.06%
 0.46%
 1.52%
 94.96%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
59° 42' 39.4" North, 29° 22' 30.8" East
59° 21' 16" North, 30° 4' 42" East
58° 59' 38.9" North, 30° 46' 53.3" East
Some cities around Siverskiy sort by population:
• Pushkin
		43.8 km =27.2 mi, 
24°
• Gatchina
		24.8 km =15.4 mi, 
6°
• Krasnoye Selo
		42.7 km =26.5 mi, 
0°
• Kommunar
		34.4 km =21.4 mi, 
30°
• Pavlovsk
		41.7 km =25.9 mi, 
28°
• Volosovo
		34.8 km =21.6 mi, 
286°
• Vyritsa
		16.4 km =10.2 mi, 
68°
• Mariyenburg
		24.1 km =15 mi, 
358°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016