Night Light of Koesan (North Chungcheong) from space (South Korea) Src. Average luminocity for 10x10km area is 11.4334% and for 50x50km: 16.6369%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
37° 22' 18.1" North, 127° 5' 29.8" East
36° 48' 39" North, 127° 47' 41" East
36° 14' 45" North, 128° 29' 52.3" East
Some cities around Koesan sort by population:
• Cheongju-si
33.3 km =20.7 mi, 234°
• Sejong
51 km =31.7 mi, 241°
• Mungyeong
43.4 km =27 mi, 123°
• Anseong
51.7 km =32.1 mi, 295°
• Chinch'ŏn
31.7 km =19.7 mi, 279°
• Sangju
54.8 km =34.1 mi, 143°
• Yeoju
55.8 km =34.7 mi, 345°
• Sintansin
51.3 km =31.9 mi, 219°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016