Night Light of Firminy (Auvergne-Rhône-Alpes) from space (France) Src. Average luminocity for 10x10km area is 39.7905% and for 50x50km: 12.7286%.
Square area 10x10 km:
 7.3%
 8.73%
 5.87%
 1.75%
 3.02%
 3.02%
 5.56%
 10.79%
 11.59%
 33.49%
 8.89%Square area 50x50 km:
 2.05%
 2.38%
 1.06%
 1.11%
 1.48%
 1.52%
 1.84%
 1.81%
 4.84%
 9.27%
 72.63%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
45° 52' 52.3" North, 3° 35' 7.7" East
45° 23' 22.4" North, 4° 17' 19" East
44° 53' 37" North, 4° 59' 30.2" East
Some cities around Firminy sort by population:
• Saint-Étienne
		9.3 km =5.8 mi, 
58°
• Le Chambon-Feugerolles
		2.6 km =1.6 mi, 
85°
• Roche-la-Molière
		5.5 km =3.4 mi, 
33°
• Villars
		10.1 km =6.3 mi, 
30°
• Unieux
		2.1 km =1.3 mi, 
319°
• La Ricamarie
		6.6 km =4.1 mi, 
74°
• Saint-Genest-Lerpt
		7.2 km =4.5 mi, 
33°
• Aurec-sur-Loire
		7.2 km =4.5 mi, 
251°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016