Night Light of Tergnier (Hauts-de-France) from space (France) Src. Average luminocity for 10x10km area is 25.7259% and for 50x50km: 6.925%.
Square area 10x10 km:
 5.08%
 4.68%
 2.14%
 2.54%
 2.94%
 1.74%
 2.94%
 0%
 1.6%
 44.65%
 31.68%Square area 50x50 km:
 1.43%
 1.42%
 0.45%
 0.59%
 0.71%
 0.65%
 0.51%
 0.48%
 0.99%
 6.45%
 86.32%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
50° 6' 32.9" North, 2° 35' 52.6" East
49° 39' 21.9" North, 3° 18' 3.9" East
49° 11' 55.5" North, 4° 0' 15.1" East
Some cities around Tergnier sort by population:
• Saint-Quentin
		21.5 km =13.4 mi, 
357°
• Soissons
		30.6 km =19 mi, 
176°
• Laon
		25.7 km =16 mi, 
113°
• Noyon
		23.1 km =14.4 mi, 
249°
• Chauny
		7.5 km =4.7 mi, 
232°
• Guise
		35.9 km =22.3 mi, 
40°
• Ham
		19.3 km =12 mi, 
301°
• Gauchy
		19.2 km =11.9 mi, 
354°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016