Night Light of Saint Peter Port (St Peter Port) from space (Guernsey) Src. Average luminocity for 10x10km area is 4.1471% and for 50x50km: 0.1708%.
Square area 10x10 km:
 0%
 0.98%
 0.14%
 0.56%
 0.14%
 0.98%
 1.26%
 1.54%
 1.68%
 0%
 92.72%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° 54' 52.9" North, 3° 14' 18.2" West
49° 27' 35.3" North, 2° 32' 7" West
49° 0' 2.4" North, 1° 49' 55.7" West
Some cities around Saint Peter Port sort by population:
• Équeurdreville-Hainneville, FR
		67 km =41.6 mi, 
71°
• Octeville, FR
		66.9 km =41.6 mi, 
73°
• Querqueville, FR
		64.9 km =40.3 mi, 
69°
• Le Hocq, JE
		47.2 km =29.3 mi, 
133°
• St Anne
		37 km =23 mi, 
39°
• Torteval
		8.8 km =5.5 mi, 
250°
• Castel
		4.8 km =3 mi, 
280°
• St Martin
		2.9 km =1.8 mi, 
209°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016