Night Light of Sawara (Chiba) from space (Japan) Src. Average luminocity for 10x10km area is 19.3993% and for 50x50km: 18.2153%.
Square area 10x10 km:
 1.1%
 1.1% 1.65%
 1.65% 2.38%
 2.38% 2.2%
 2.2% 5.13%
 5.13% 2.93%
 2.93% 1.47%
 1.47% 2.56%
 2.56% 4.95%
 4.95% 15.57%
 15.57% 60.07%
 60.07%Square area 50x50 km:
 1.57%
 1.57% 2.39%
 2.39% 1.27%
 1.27% 1.96%
 1.96% 2.55%
 2.55% 3.08%
 3.08% 4.17%
 4.17% 4.18%
 4.18% 7.43%
 7.43% 12.51%
 12.51% 58.89%
 58.89%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
36° 27' 3.5" North, 139° 47' 48.8" East
35° 52' 60" North, 140° 30' 0" East
35° 18' 41.8" North, 141° 12' 11.3" East
Some cities around Sawara sort by population:
• Narita
		19.9 km =12.4 mi,  236°
236°
• Katori-shi
		1.6 km =1 mi,  358°
358°
• Kashima-shi
		15.9 km =9.9 mi,  55°
55°
• Inashiki
		17.8 km =11.1 mi,  297°
297°
• YĆkaichiba
		20.9 km =13 mi,  167°
167°
• Itako
		7.2 km =4.5 mi,  39°
39°
• Omigawa
		11.1 km =6.9 mi,  109°
109°
• Edosaki
		18.1 km =11.2 mi,  294°
294°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016