Night Light of Teufen (Appenzell Ausserrhoden) from space (Switzerland) Src. Average luminocity for 10x10km area is 16.0483% and for 50x50km: 8.1759%.
Square area 10x10 km:
 2.41%
 3.55%
 0.99%
 1.56%
 2.13%
 0.43%
 1.85%
 1.42%
 2.13%
 20.6%
 62.93%Square area 50x50 km:
 0.37%
 0.82%
 0.79%
 1.02%
 1.31%
 1.31%
 1.7%
 1.23%
 2.08%
 8.54%
 80.84%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
47° 51' 52.8" North, 8° 40' 59.9" East
47° 23' 26.9" North, 9° 23' 11.2" East
46° 54' 45.5" North, 10° 5' 22.5" East
Some cities around Teufen sort by population:
• Sankt Gallen
		3.8 km =2.4 mi, 
346°
• Gossau
		10.3 km =6.4 mi, 
285°
• Herisau
		8.1 km =5 mi, 
266°
• Altstätten
		12.2 km =7.6 mi, 
96°
• Goldach
		11.1 km =6.9 mi, 
33°
• Rorschach
		12.5 km =7.8 mi, 
38°
• Wittenbach
		7.8 km =4.8 mi, 
359°
• Appenzell
		6.9 km =4.3 mi, 
165°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016