Night Light of Porto Torres (Sardinia) from space (Italy) Src. Average luminocity for 10x10km area is 26.0068% and for 50x50km: 6.5708%.
Square area 10x10 km:
 4.42%
 4.42% 6.46%
 6.46% 2.21%
 2.21% 2.55%
 2.55% 2.04%
 2.04% 2.38%
 2.38% 0.34%
 0.34% 2.72%
 2.72% 2.21%
 2.21% 42.86%
 42.86% 31.8%
 31.8%Square area 50x50 km:
 0.8%
 0.8% 0.88%
 0.88% 0.57%
 0.57% 0.69%
 0.69% 1.09%
 1.09% 0.77%
 0.77% 0.66%
 0.66% 0.7%
 0.7% 2.05%
 2.05% 5.73%
 5.73% 86.03%
 86.03%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
41° 21' 49" North, 7° 42' 7.8" East
40° 50' 1.5" North, 8° 24' 19.1" East
40° 17' 58.7" North, 9° 6' 30.3" East
Some cities around Porto Torres sort by population:
• Sassari
		17.4 km =10.8 mi,  133°
133°
• Alghero
		31.3 km =19.4 mi,  193°
193°
• Sorso
		14.8 km =9.2 mi,  104°
104°
• Li Punti-San Giovanni
		10.5 km =6.5 mi,  138°
138°
• Ittiri
		30.3 km =18.8 mi,  152°
152°
• Ozieri
		57.4 km =35.7 mi,  118°
118°
• Sennori
		16.6 km =10.3 mi,  107°
107°
• Ossi
		23.7 km =14.7 mi,  138°
138°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016