Night Light of Yokohama (Kanagawa) from space (Japan) Src. Average luminocity for 10x10km area is 88.174% and for 50x50km: 60.3654%.
Square area 10x10 km:
 50.73%
 25.46%
 4.95%
 1.28%
 3.3%
 1.65%
 6.04%
 2.93%
 3.3%
 0.37%
 0%Square area 50x50 km:
 28.58%
 16.65%
 6%
 4.03%
 2.67%
 1.71%
 2.07%
 3.24%
 5.32%
 7.43%
 22.3%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
36° 0' 15.1" North, 138° 56' 48.8" East
35° 25' 60" North, 139° 39' 0" East
34° 51' 30.2" North, 140° 21' 11.3" East
Some cities around Yokohama sort by population:
• Kawasaki
		11.5 km =7.1 mi, 
32°
• Yokosuka
		16.7 km =10.4 mi, 
174°
• Fujisawa
		18.3 km =11.4 mi, 
239°
• Minamirinkan
		20 km =12.4 mi, 
290°
• Kamakura
		16.5 km =10.3 mi, 
213°
• Zushi
		16.7 km =10.4 mi, 
202°
• Futtsu
		20.5 km =12.7 mi, 
131°
• Hayama
		18.6 km =11.6 mi, 
200°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016