Night Light of Schweich (Rheinland-Pfalz) from space (Germany) Src. Average luminocity for 10x10km area is 9.7179% and for 50x50km: 4.4652%.
Square area 10x10 km:
 0.53%
 1.07%
 0.27%
 1.74%
 1.87%
 1.34%
 2.94%
 2.41%
 0.53%
 6.68%
 80.61%Square area 50x50 km:
 0.62%
 0.78%
 0.22%
 0.45%
 0.61%
 0.57%
 0.73%
 0.57%
 1.14%
 2.59%
 91.74%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
50° 16' 25.2" North, 6° 2' 57.9" East
49° 49' 19.7" North, 6° 45' 9.2" East
49° 21' 59" North, 7° 27' 20.4" East
Some cities around Schweich sort by population:
• Trier
		11 km =6.8 mi, 
227°
• Wittlich
		20.8 km =12.9 mi, 
28°
• Konz
		18.5 km =11.5 mi, 
223°
• Bitburg
		22.9 km =14.2 mi, 
315°
• Morbach
		26.9 km =16.7 mi, 
93°
• Bernkastel-Kues
		25.5 km =15.8 mi, 
65°
• Hermeskeil
		23.1 km =14.4 mi, 
143°
• Grevenmacher, LU
		27.6 km =17.1 mi, 
234°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016