Night Light of Furtwangen (Baden-Württemberg) from space (Germany) Src. Average luminocity for 10x10km area is 1.4091% and for 50x50km: 3.6107%.
Square area 10x10 km:
 0%
 0%
 0.57%
 0%
 0.71%
 0.43%
 0%
 0%
 0.28%
 0.28%
 97.73%Square area 50x50 km:
 0.25%
 0.49%
 0.23%
 0.47%
 0.44%
 0.54%
 0.74%
 0.51%
 0.91%
 3.39%
 92.02%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
48° 31' 9.9" North, 7° 30' 14.5" East
48° 3' 5.6" North, 8° 12' 25.7" East
47° 34' 45.8" North, 8° 54' 37" East
Some cities around Furtwangen sort by population:
• Waldkirch
		18.7 km =11.6 mi, 
285°
• Sankt Georgen im Schwarzwald
		12.7 km =7.9 mi, 
48°
• Titisee-Neustadt
		14.6 km =9.1 mi, 
184°
• Löffingen
		21.2 km =13.2 mi, 
151°
• Elzach
		16.9 km =10.5 mi, 
322°
• Königsfeld im Schwarzwald
		18.5 km =11.5 mi, 
58°
• Triberg
		9.1 km =5.7 mi, 
12°
• Lenzkirch
		20.4 km =12.7 mi, 
181°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016