Night Light of Itoigawa (Niigata) from space (Japan) Src. Average luminocity for 10x10km area is 11.6173% and for 50x50km: 0.7341%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
37° 35' 33.2" North, 137° 8' 48.8" East
37° 1' 60" North, 137° 51' 0" East
36° 28' 11.9" North, 138° 33' 11.3" East
Some cities around Itoigawa sort by population:
• Nagano
51.9 km =32.2 mi, 145°
• Jōetsu
36.6 km =22.7 mi, 69°
• Uozu
47.7 km =29.6 mi, 237°
• Kurobe-shi
38.5 km =23.9 mi, 247°
• Nyūzen
32.8 km =20.4 mi, 251°
• Arai
33.6 km =20.9 mi, 96°
• Iiyama
50.2 km =31.2 mi, 113°
• Hakuba
37.3 km =23.2 mi, 178°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016