Night Light of Calau (Brandenburg) from space (Germany) Src. Average luminocity for 10x10km area is 0.5196% and for 50x50km: 1.687%.
Square area 10x10 km:
 0%
 0%
 0%
 0%
 0%
 0%
 0.56%
 0%
 0.7%
 0.42%
 98.32%Square area 50x50 km:
 0.16%
 0.21%
 0.09%
 0.18%
 0.24%
 0.41%
 0.4%
 0.23%
 0.19%
 0.74%
 97.16%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
52° 10' 38.2" North, 13° 15' 0.6" East
51° 44' 38.5" North, 13° 57' 11.8" East
51° 18' 23.6" North, 14° 39' 23.1" East
Some cities around Calau sort by population:
• Finsterwalde
		21 km =13 mi, 
234°
• Lübbenau
		13.1 km =8.1 mi, 
359°
• Lübben
		22 km =13.7 mi, 
348°
• Großräschen
		17.8 km =11.1 mi, 
167°
• Luckau
		20.8 km =12.9 mi, 
305°
• Kolkwitz
		20.4 km =12.7 mi, 
88°
• Vetschau
		9.9 km =6.2 mi, 
61°
• Drebkau
		21.1 km =13.1 mi, 
118°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016