Night Light of Yanggu (Gangwon-do) from space (South Korea) Src. Average luminocity for 10x10km area is 12.8923% and for 50x50km: 3.7252%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
38° 39' 25.2" North, 127° 17' 10.8" East
38° 6' 21" North, 127° 59' 22" East
37° 33' 1.7" North, 128° 41' 33.3" East
Some cities around Yanggu sort by population:
• Chuncheon
34.1 km =21.2 mi, 221°
• Hwado
78.2 km =48.6 mi, 229°
• Sokcho
53.9 km =33.5 mi, 77°
• Hongch’ŏn
46.9 km =29.1 mi, 191°
• Kosong
51.6 km =32.1 mi, 53°
• Gapyeong
51.9 km =32.2 mi, 233°
• Hwacheon
24.8 km =15.4 mi, 270°
• Hoeyang, KP
75.4 km =46.9 mi, 333°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016