Night Light of Sanjō (Niigata) from space (Japan) Src. Average luminocity for 10x10km area is 18.3384% and for 50x50km: 6.146%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
38° 10' 17.5" North, 138° 14' 48.8" East
37° 37' 0" North, 138° 57' 0" East
37° 3' 27.5" North, 139° 39' 11.3" East
Some cities around Sanjō sort by population:
• Nagaoka
20.5 km =12.7 mi, 205°
• Tsubame
5.7 km =3.5 mi, 337°
• Mitsuke
9.4 km =5.8 mi, 189°
• Shirone
17.5 km =10.9 mi, 21°
• Kamo
9.2 km =5.7 mi, 54°
• Maki
15.9 km =9.9 mi, 338°
• Yoshida-kasugachō
9.5 km =5.9 mi, 321°
• Tochio-honchō
16.1 km =10 mi, 165°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016