Night Light of Silvi (Abruzzo) from space (Italy) Src. Average luminocity for 10x10km area is 44.054% and for 50x50km: 22.0358%.
Square area 10x10 km:
 9.68%
 10.79%
 3.49%
 5.24%
 3.33%
 3.02%
 3.81%
 5.56%
 21.9%
 25.56%
 7.62%Square area 50x50 km:
 2.92%
 4.39%
 1.89%
 2.27%
 3.29%
 3.11%
 3.23%
 3.85%
 8.75%
 14.09%
 52.2%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
43° 3' 56.4" North, 13° 24' 52.1" East
42° 32' 59.4" North, 14° 7' 3.3" East
42° 1' 47" North, 14° 49' 14.6" East
Some cities around Silvi sort by population:
• Pescara
		12.3 km =7.6 mi, 
145°
• Montesilvano Marina
		4.8 km =3 mi, 
152°
• Roseto degli Abruzzi
		15.9 km =9.9 mi, 
328°
• Sambuceto
		15.4 km =9.6 mi, 
158°
• Penne
		18.8 km =11.7 mi, 
235°
• Atri
		10.9 km =6.8 mi, 
285°
• Pineto
		7.8 km =4.8 mi, 
327°
• Villa Raspa
		11.8 km =7.3 mi, 
152°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016