Night Light of Gießen (Hesse) from space (Germany) Src. Average luminocity for 10x10km area is 28.5882% and for 50x50km: 3.6897%.
Square area 10x10 km:
 6.28%
 5.75%
 2.14%
 1.34%
 4.68%
 1.87%
 2.41%
 1.2%
 3.48%
 40.64%
 30.21%Square area 50x50 km:
 0.51%
 0.54%
 0.28%
 0.31%
 0.62%
 0.37%
 0.52%
 0.42%
 0.49%
 2.89%
 93.04%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
51° 1' 53.7" North, 7° 58' 20.7" East
50° 35' 14.2" North, 8° 40' 31.9" East
50° 8' 19.5" North, 9° 22' 43.2" East
Some cities around Gießen sort by population:
• Wetzlar
		12.4 km =7.7 mi, 
256°
• Aßlar
		15 km =9.3 mi, 
271°
• Lich
		12.4 km =7.7 mi, 
126°
• Langgöns
		9.7 km =6 mi, 
183°
• Reiskirchen
		11.2 km =7 mi, 
82°
• Lollar
		6.9 km =4.3 mi, 
17°
• Staufenberg
		9.2 km =5.7 mi, 
25°
• Heuchelheim
		3 km =1.9 mi, 
261°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016