Night Light of Torteval from space (Guernsey) Src. Average luminocity for 10x10km area is 0.8697% and for 50x50km: 0.1708%.
Square area 10x10 km:
 0%
 0.56%
 0%
 0%
 0%
 0%
 0%
 0.56%
 0%
 0%
 98.88%Square area 50x50 km:
 0%
 0.04%
 0.01%
 0.02%
 0.01%
 0.04%
 0.05%
 0.06%
 0.07%
 0%
 99.71%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
49° 53' 18.5" North, 3° 21' 11.3" West
49° 25' 60" North, 2° 39' 0" West
48° 58' 26.1" North, 1° 56' 48.8" West
Some cities around Torteval sort by population:
• Saint Helier, JE
		48 km =29.8 mi, 
124°
• Saint Peter Port
		8.8 km =5.5 mi, 
70°
• St Anne
		44.7 km =27.8 mi, 
45°
• Saint Sampson
		10.7 km =6.6 mi, 
58°
• St Martin
		6.9 km =4.3 mi, 
86°
• Saint Andrew
		5.2 km =3.2 mi, 
76°
• Castel
		5.2 km =3.2 mi, 
43°
• Saint Saviour
		2.8 km =1.7 mi, 
21°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016