Night Light of Okazaki (Aichi) from space (Japan) Src. Average luminocity for 10x10km area is 78.6429% and for 50x50km: 46.6845%.
Square area 10x10 km:
 20.51%
 23.26%
 8.97%
 17.03%
 12.82%
 5.31%
 2.75%
 5.13%
 4.21%
 0%
 0%Square area 50x50 km:
 11.13%
 10.42%
 6.92%
 7.16%
 8.84%
 5.18%
 3.36%
 3.67%
 5.59%
 8.36%
 29.36%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
35° 31' 27.4" North, 136° 27' 48.8" East
34° 57' 0" North, 137° 10' 0" East
34° 22' 18" North, 137° 52' 11.3" East
Some cities around Okazaki sort by population:
• Toyota
		14.9 km =9.3 mi, 
354°
• Anjō
		7.9 km =4.9 mi, 
276°
• Kariya
		17.1 km =10.6 mi, 
282°
• Nishio
		14.1 km =8.8 mi, 
228°
• Gamagōri
		14.3 km =8.9 mi, 
154°
• Hekinan
		18.3 km =11.4 mi, 
246°
• Chiryū
		13.4 km =8.3 mi, 
294°
• Takahama
		17.1 km =10.6 mi, 
257°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016