Night Light of Seongnam-si (Gyeonggi-do) from space (South Korea) Src. Average luminocity for 10x10km area is 90.5925% and for 50x50km: 75.576%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
37° 59' 41.3" North, 126° 26' 4.8" East
37° 26' 19" North, 127° 8' 16" East
36° 52' 41.7" North, 127° 50' 27.3" East
Some cities around Seongnam-si sort by population:
• Seoul
20 km =12.4 mi, 315°
• Suwon
20 km =12.4 mi, 214°
• Anyang-si
19.3 km =12 mi, 254°
• Guri-si
17.8 km =11.1 mi, 0°
• Hanam
12.8 km =8 mi, 27°
• Wabu
18.3 km =11.4 mi, 23°
• Gwangju
11 km =6.8 mi, 106°
• Yongsan-dong
18 km =11.2 mi, 310°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016