Night Light of Salt Spring Island (British Columbia) from space (Canada) Src. Average luminocity for 10x10km area is 1.2372% and for 50x50km: 2.1085%.
Square area 10x10 km:
 0%
 0%
 0%
 0%
 0%
 0.57%
 0.85%
 1.28%
 0.14%
 0%
 97.16%Square area 50x50 km:
 0.32%
 0.3%
 0.23%
 0.13%
 0.25%
 0.38%
 0.3%
 0.33%
 0.15%
 0.67%
 96.96%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
49° 16' 45.7" North, 124° 11' 37.5" West
48° 49' 6.7" North, 123° 29' 26.2" West
48° 21' 12.3" North, 122° 47' 15" West
Some cities around Salt Spring Island sort by population:
• Ladner
		42.4 km =26.3 mi, 
44°
• North Cowichan
		14.5 km =9 mi, 
280°
• Langford
		41 km =25.5 mi, 
181°
• Duncan
		16 km =9.9 mi, 
255°
• Tsawwassen
		37 km =23 mi, 
53°
• Colwood
		42.9 km =26.7 mi, 
179°
• North Saanich
		17.7 km =11 mi, 
162°
• Ladysmith
		30.5 km =19 mi, 
308°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016