Night Light of Incheon from space (South Korea) Src. Average luminocity for 10x10km area is 98.9951% and for 50x50km: 71.6013%.
Square area 10x10 km:
 75.16%
 75.16% 20.94%
 20.94% 3.73%
 3.73% 0.16%
 0.16% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0%Square area 50x50 km:
 28.09%
 28.09% 19.04%
 19.04% 9.54%
 9.54% 8.35%
 8.35% 4.56%
 4.56% 5.07%
 5.07% 2.98%
 2.98% 3.69%
 3.69% 4.96%
 4.96% 7.43%
 7.43% 6.3%
 6.3%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
38° 0' 45.1" North, 126° 0' 7.3" East
37° 27' 23.3" North, 126° 42' 18.5" East
36° 53' 46.4" North, 127° 24' 29.8" East
Some cities around Incheon sort by population:
• Seoul
		27 km =16.8 mi,  63°
63°
• Goyang-si
		25 km =15.5 mi,  27°
27°
• Bucheon-si
		8.3 km =5.2 mi,  55°
55°
• Ansan-si
		18 km =11.2 mi,  145°
145°
• Anyang-si
		20.8 km =12.9 mi,  109°
109°
• Hwaseong-si
		29.5 km =18.3 mi,  160°
160°
• Kwangmyŏng
		14.4 km =8.9 mi,  80°
80°
• Yongsan-dong
		26.4 km =16.4 mi,  68°
68°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016