Night Light of Callington (England) from space (United Kingdom) Src. Average luminocity for 10x10km area is 1.8361% and for 50x50km: 4.3944%.
Square area 10x10 km:
 0%
 0.28%
 0.28%
 0.42%
 0.14%
 0%
 0.56%
 0.56%
 0.56%
 0%
 97.2%Square area 50x50 km:
 0.55%
 0.87%
 0.57%
 0.55%
 0.59%
 0.63%
 0.46%
 0.38%
 1.27%
 2.87%
 91.26%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
50° 56' 47.7" North, 5° 0' 58.6" West
50° 30' 5.3" North, 4° 18' 47.3" West
50° 3' 7.6" North, 3° 36' 36.1" West
Some cities around Callington sort by population:
• Plymouth
		18.8 km =11.7 mi, 
140°
• Saltash
		12 km =7.5 mi, 
148°
• Tavistock
		13.1 km =8.1 mi, 
65°
• Liskeard
		12 km =7.5 mi, 
244°
• Launceston
		15.4 km =9.6 mi, 
347°
• Plympton
		21.7 km =13.5 mi, 
124°
• Torpoint
		16.3 km =10.1 mi, 
149°
• Looe
		18.8 km =11.7 mi, 
212°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016