Night Light of Gusev (Kaliningrad) from space (Russia) Src. Average luminocity for 10x10km area is 8.2356% and for 50x50km: 0.6213%.
Square area 10x10 km:
 0.6%
 1.44%
 0.6%
 1.2%
 2.27%
 0.6%
 2.15%
 0.72%
 0.48%
 0%
 89.95%Square area 50x50 km:
 0.03%
 0.13%
 0.04%
 0.1%
 0.12%
 0.07%
 0.12%
 0.03%
 0.03%
 0.1%
 99.21%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
54° 59' 51.3" North, 21° 29' 47.8" East
54° 35' 32" North, 22° 11' 59" East
54° 10' 58" North, 22° 54' 10.3" East
Some cities around Gusev sort by population:
• Chernyakhovsk
		25.2 km =15.7 mi, 
280°
• Gołdap, PL
		32.5 km =20.2 mi, 
168°
• Vilkaviskis, LT
		54 km =33.6 mi, 
82°
• Neman
		50 km =31.1 mi, 
347°
• Węgorzewo, PL
		51.5 km =32 mi, 
215°
• Kybartai, LT
		36.6 km =22.7 mi, 
81°
• Ozërsk
		23.6 km =14.7 mi, 
211°
• Nesterov
		24.3 km =15.1 mi, 
79°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016