Night Light of Messancy (Wallonia) from space (Belgium) Src. Average luminocity for 10x10km area is 34.1835% and for 50x50km: 18.0408%.
Square area 10x10 km:
 5.18%
 5.46%
 3.92%
 3.36%
 2.38%
 3.22%
 6.72%
 3.5%
 20.73%
 35.01%
 10.5%Square area 50x50 km:
 3.22%
 3.32%
 1.79%
 1.56%
 1.55%
 1.74%
 2.13%
 3.18%
 8.06%
 14.81%
 58.62%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
50° 2' 44.4" North, 5° 6' 56.4" East
49° 35' 31.2" North, 5° 49' 7.6" East
49° 8' 2.7" North, 6° 31' 18.9" East
Some cities around Messancy sort by population:
• Arlon
		10.2 km =6.3 mi, 
359°
• Aubange
		3 km =1.9 mi, 
199°
• Longwy, FR
		8.8 km =5.5 mi, 
207°
• Mont-Saint-Martin, FR
		6 km =3.7 mi, 
205°
• Pétange, LU
		5.8 km =3.6 mi, 
130°
• Belvaux, LU
		11.9 km =7.4 mi, 
140°
• Differdange, LU
		9.2 km =5.7 mi, 
145°
• Mamer, LU
		15.3 km =9.5 mi, 
75°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016