Night Light of Rifu (Miyagi) from space (Japan) Src. Average luminocity for 10x10km area is 61.9422% and for 50x50km: 21.1719%.
Square area 10x10 km:
 10.54%
 14.29%
 6.46%
 12.59%
 15.31%
 7.48%
 4.25%
 6.29%
 14.8%
 7.99%
 0%Square area 50x50 km:
 3.42%
 4.56%
 2.16%
 2.82%
 3.37%
 2.73%
 2.13%
 2.72%
 5.23%
 10.91%
 59.96%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
38° 52' 49.4" North, 140° 16' 25.6" East
38° 19' 51.3" North, 140° 58' 36.9" East
37° 46' 38.1" North, 141° 40' 48.1" East
Some cities around Rifu sort by population:
• Sendai
		12 km =7.5 mi, 
233°
• Furukawa
		26.8 km =16.7 mi, 
356°
• Shiogama
		5.2 km =3.2 mi, 
107°
• Tomiya
		10.5 km =6.5 mi, 
311°
• Iwanuma
		27.2 km =16.9 mi, 
202°
• Yamoto
		23.4 km =14.5 mi, 
62°
• Kogota
		25.2 km =15.7 mi, 
14°
• Matsushima
		8.7 km =5.4 mi, 
57°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016