Night Light of Gwangju (Gyeonggi-do) from space (South Korea) Src. Average luminocity for 10x10km area is 71.8523% and for 50x50km: 60.9052%.
Square area 10x10 km:
 6.66%
 6.66% 16.56%
 16.56% 11.2%
 11.2% 15.75%
 15.75% 21.59%
 21.59% 16.56%
 16.56% 11.04%
 11.04% 0.65%
 0.65% 0%
 0% 0%
 0% 0%
 0%Square area 50x50 km:
 18.29%
 18.29% 13.13%
 13.13% 7.85%
 7.85% 8.34%
 8.34% 8.28%
 8.28% 7.93%
 7.93% 6.98%
 6.98% 5.6%
 5.6% 5.18%
 5.18% 4.68%
 4.68% 13.74%
 13.74%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
37° 57' 59.1" North, 126° 33' 14.8" East
37° 24' 36" North, 127° 15' 26" East
36° 50' 57.9" North, 127° 57' 37.3" East
Some cities around Gwangju sort by population:
• Suwon
		25.6 km =15.9 mi,  238°
238°
• Seongnam-si
		11 km =6.8 mi,  286°
286°
• Icheon-si
		21.9 km =13.6 mi,  131°
131°
• Guri-si
		23.4 km =14.5 mi,  333°
333°
• Hanam
		15.2 km =9.4 mi,  342°
342°
• Wabu
		20.2 km =12.6 mi,  350°
350°
• Namyangju
		25.5 km =15.8 mi,  351°
351°
• Yangp'yŏng
		22.4 km =13.9 mi,  66°
66°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016