Night Light of Sumy from space (Ukraine) Src. Average luminocity for 10x10km area is 56.4692% and for 50x50km: 2.7865%.
Square area 10x10 km:
 19.89%
 14.57%
 4.06%
 4.06%
 4.76%
 4.34%
 3.92%
 6.16%
 14.71%
 20.87%
 2.66%Square area 50x50 km:
 0.76%
 0.55%
 0.18%
 0.19%
 0.21%
 0.21%
 0.23%
 0.37%
 0.84%
 2.34%
 94.13%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
51° 21' 45.8" North, 34° 5' 49.8" East
50° 55' 17.8" North, 34° 48' 1" East
50° 28' 34.5" North, 35° 30' 12.3" East
Some cities around Sumy sort by population:
• Lebedyn
		43.5 km =27 mi, 
210°
• Bilopillya
		42.5 km =26.4 mi, 
306°
• Krasnopillya
		36.2 km =22.5 mi, 
116°
• Trostyanets’
		49.9 km =31 mi, 
166°
• Vorozhba
		49.3 km =30.6 mi, 
304°
• Sudzha, RU
		45.1 km =28 mi, 
47°
• KorenĂ«vo, RU
		55 km =34.2 mi, 
7°
• Glushkovo, RU
		47.9 km =29.8 mi, 
345°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016