Night Light of Guise (Hauts-de-France) from space (France) Src. Average luminocity for 10x10km area is 3.9426% and for 50x50km: 3.9094%.
Square area 10x10 km:
 0.42%
 0.7%
 0%
 0.56%
 0.56%
 1.68%
 0.56%
 0.56%
 0%
 0.42%
 94.54%Square area 50x50 km:
 0.62%
 0.76%
 0.22%
 0.28%
 0.65%
 0.41%
 0.32%
 0.58%
 0.76%
 2.6%
 92.79%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
50° 21' 4.8" North, 2° 55' 29.6" East
49° 54' 2" North, 3° 37' 40.8" East
49° 26' 43.9" North, 4° 19' 52.1" East
Some cities around Guise sort by population:
• Saint-Quentin
		25.1 km =15.6 mi, 
256°
• Tergnier
		35.9 km =22.3 mi, 
220°
• Fourmies
		32.6 km =20.3 mi, 
66°
• Caudry
		29.3 km =18.2 mi, 
328°
• Hirson
		32.6 km =20.3 mi, 
85°
• Aulnoye-Aymeries
		36.7 km =22.8 mi, 
24°
• Bohain-en-Vermandois
		15.8 km =9.8 mi, 
307°
• Gauchy
		26.7 km =16.6 mi, 
252°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016