Night Light of Bucheon-si (Gyeonggi-do) from space (South Korea) Src. Average luminocity for 10x10km area is 98.2906% and for 50x50km: 80.9929%.
Square area 10x10 km:
 61.53%
 61.53% 32.63%
 32.63% 5.84%
 5.84% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0% 0%
 0%Square area 50x50 km:
 34.9%
 34.9% 20.66%
 20.66% 11.38%
 11.38% 10.04%
 10.04% 5.43%
 5.43% 4.19%
 4.19% 2.59%
 2.59% 2.4%
 2.4% 2.68%
 2.68% 3.15%
 3.15% 2.58%
 2.58%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
38° 3' 16.7" North, 126° 4' 47.8" East
37° 29' 56" North, 126° 46' 59" East
36° 56' 20.3" North, 127° 29' 10.3" East
Some cities around Bucheon-si sort by population:
• Seoul
		18.8 km =11.7 mi,  66°
66°
• Incheon
		8.3 km =5.2 mi,  235°
235°
• Suwon
		30.5 km =19 mi,  139°
139°
• Goyang-si
		18.1 km =11.2 mi,  14°
14°
• Ansan-si
		19.8 km =12.3 mi,  170°
170°
• Anyang-si
		17.4 km =10.8 mi,  132°
132°
• Kwangmyŏng
		7.7 km =4.8 mi,  108°
108°
• Yongsan-dong
		18.4 km =11.4 mi,  74°
74°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016