Night Light of Laon (Hauts-de-France) from space (France) Src. Average luminocity for 10x10km area is 24.2521% and for 50x50km: 4.3923%.
Square area 10x10 km:
 7.56%
 6.72%
 1.54%
 0.98%
 0.56%
 0.56%
 0.42%
 0.7%
 0.42%
 35.43%
 45.1%Square area 50x50 km:
 0.94%
 0.96%
 0.31%
 0.35%
 0.42%
 0.32%
 0.3%
 0.37%
 0.6%
 4.26%
 91.16%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
50° 1' 1.3" North, 2° 55' 26.5" East
49° 33' 47.2" North, 3° 37' 37.7" East
49° 6' 17.7" North, 4° 19' 49" East
Some cities around Laon sort by population:
• Saint-Quentin
		40.1 km =24.9 mi, 
322°
• Soissons
		29.8 km =18.5 mi, 
227°
• Tergnier
		25.7 km =16 mi, 
293°
• Chauny
		30 km =18.6 mi, 
281°
• Tinqueux
		43.3 km =26.9 mi, 
143°
• Guise
		37.5 km =23.3 mi, 
0°
• Gauchy
		38.9 km =24.2 mi, 
319°
• Fismes
		28.7 km =17.8 mi, 
171°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016