Night Light of Itako (Ibaraki) from space (Japan) Src. Average luminocity for 10x10km area is 22.0348% and for 50x50km: 15.2404%.
Square area 10x10 km:
 0%
 0% 0.73%
 0.73% 0.92%
 0.92% 3.11%
 3.11% 4.95%
 4.95% 2.93%
 2.93% 3.3%
 3.3% 8.06%
 8.06% 10.81%
 10.81% 34.98%
 34.98% 30.22%
 30.22%Square area 50x50 km:
 1.5%
 1.5% 2.22%
 2.22% 1.16%
 1.16% 1.49%
 1.49% 2.27%
 2.27% 2.69%
 2.69% 3.12%
 3.12% 3.28%
 3.28% 4.9%
 4.9% 9.88%
 9.88% 67.49%
 67.49%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
36° 30' 2.2" North, 139° 50' 48.8" East
35° 55' 60" North, 140° 33' 0" East
35° 21' 43.1" North, 141° 15' 11.3" East
Some cities around Itako sort by population:
• Katori-shi
		6 km =3.7 mi,  228°
228°
• Kashima-shi
		9.2 km =5.7 mi,  67°
67°
• Sawara
		7.2 km =4.5 mi,  219°
219°
• Inashiki
		20.5 km =12.7 mi,  277°
277°
• Asahi
		25.7 km =16 mi,  159°
159°
• YĆkaichiba
		25.9 km =16.1 mi,  180°
180°
• Omigawa
		11 km =6.8 mi,  147°
147°
• Edosaki
		21.1 km =13.1 mi,  275°
275°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016