Night Light of Usingen (Hesse) from space (Germany) Src. Average luminocity for 10x10km area is 6.965% and for 50x50km: 12.2745%.
Square area 10x10 km:
 0%
 1.26%
 1.54%
 1.12%
 1.54%
 0.42%
 0.98%
 0.98%
 0.56%
 0.28%
 91.32%Square area 50x50 km:
 2.15%
 2.2%
 1.31%
 1.45%
 1.46%
 1.28%
 1.88%
 2.06%
 2.96%
 6%
 77.25%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
50° 46' 56" North, 7° 50' 1.5" East
50° 20' 7.9" North, 8° 32' 12.8" East
49° 53' 4.6" North, 9° 14' 24" East
Some cities around Usingen sort by population:
• Bad Homburg vor der Höhe
		13.4 km =8.3 mi, 
154°
• Friedrichsdorf
		12.2 km =7.6 mi, 
141°
• Neu-Anspach
		3.4 km =2.1 mi, 
231°
• Rosbach vor der Höhe
		11.4 km =7.1 mi, 
108°
• Wehrheim
		4.5 km =2.8 mi, 
151°
• Schmitten
		9.8 km =6.1 mi, 
218°
• Ober-Mörlen
		11.7 km =7.3 mi, 
68°
• Grävenwiesbach
		8.3 km =5.2 mi, 
316°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016