Night Light of Jōetsu (Niigata) from space (Japan) Src. Average luminocity for 10x10km area is 34.3384% and for 50x50km: 2.9221%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
37° 42' 23.9" North, 137° 31' 59.9" East
37° 8' 53.8" North, 138° 14' 11.1" East
36° 35' 8.7" North, 138° 56' 22.4" East
Some cities around Jōetsu sort by population:
• Nagano
55.6 km =34.5 mi, 184°
• Kashiwazaki
36.9 km =22.9 mi, 48°
• Nakano
45.8 km =28.5 mi, 165°
• Tōkamachi
47 km =29.2 mi, 92°
• Ojiya
52.7 km =32.7 mi, 71°
• Itoigawa
36.6 km =22.7 mi, 249°
• Arai
16.4 km =10.2 mi, 183°
• Iiyama
35.1 km =21.8 mi, 160°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016