Night Light of Perros-Guirec (Brittany) from space (France) Src. Average luminocity for 10x10km area is 1.0369% and for 50x50km: 0.7403%.
Square area 10x10 km:
 0%
 0%
 0%
 0%
 0%
 0%
 0.28%
 0%
 0%
 0%
 99.72%Square area 50x50 km:
 0.06%
 0.19%
 0.06%
 0.1%
 0.08%
 0.07%
 0.08%
 0.1%
 0.1%
 0.19%
 98.97%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
49° 16' 31.5" North, 4° 8' 33.9" West
48° 48' 52.3" North, 3° 26' 22.7" West
48° 20' 57.8" North, 2° 44' 11.4" West
Some cities around Perros-Guirec sort by population:
• Lannion
		9.2 km =5.7 mi, 
187°
• Morlaix
		38.8 km =24.1 mi, 
227°
• Plérin
		57.1 km =35.5 mi, 
121°
• Guingamp
		35.1 km =21.8 mi, 
142°
• Paimpol
		29.3 km =18.2 mi, 
97°
• Saint-Pol-de-Léon
		42.4 km =26.3 mi, 
249°
• Pordic
		53.1 km =33 mi, 
120°
• Saint-Martin-des-Champs
		38.7 km =24 mi, 
228°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016