Night Light of Pontremoli (Tuscany) from space (Italy) Src. Average luminocity for 10x10km area is 5.7175% and for 50x50km: 2.7227%.
Square area 10x10 km:
 0.48%
 0.16%
 0%
 0%
 0.63%
 2.54%
 3.17%
 1.43%
 1.75%
 0%
 89.84%Square area 50x50 km:
 0.12%
 0.2%
 0.26%
 0.25%
 0.44%
 0.6%
 0.58%
 0.67%
 0.86%
 1.69%
 94.33%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
44° 52' 32.1" North, 9° 10' 32.7" East
44° 22' 30.5" North, 9° 52' 44" East
43° 52' 13.5" North, 10° 34' 55.2" East
Some cities around Pontremoli sort by population:
• La Spezia
		30.6 km =19 mi, 
188°
• Sarzana
		30 km =18.6 mi, 
167°
• Lerici
		33.4 km =20.8 mi, 
175°
• Santo Stefano di Magra
		25.4 km =15.8 mi, 
172°
• Colombiera-Molicciara
		33.7 km =20.9 mi, 
161°
• Ceparana-Carpena
		23.2 km =14.4 mi, 
179°
• Arcola
		28.7 km =17.8 mi, 
174°
• Borgo Val di Taro
		15.4 km =9.6 mi, 
325°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016