Night Light of Sorel-Tracy (Quebec) from space (Canada) Src. Average luminocity for 10x10km area is 39.3466% and for 50x50km: 7.1998%.
Square area 10x10 km:
 5.68%
 9.94%
 4.69%
 4.12%
 6.39%
 2.98%
 2.41%
 5.26%
 13.21%
 30.97%
 14.35%Square area 50x50 km:
 0.75%
 1.21%
 0.7%
 0.66%
 1.04%
 0.91%
 1.02%
 0.97%
 2.03%
 5.53%
 85.18%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
46° 31' 39.7" North, 73° 49' 0.2" West
46° 2' 30.4" North, 73° 6' 48.9" West
45° 33' 5.6" North, 72° 24' 37.7" West
Some cities around Sorel-Tracy sort by population:
• Repentigny
		42.3 km =26.3 mi, 
218°
• Joliette
		24.1 km =15 mi, 
263°
• L'Assomption
		34.5 km =21.4 mi, 
225°
• Lavaltrie
		21.9 km =13.6 mi, 
216°
• Notre-Dame-des-Prairies
		24.6 km =15.3 mi, 
272°
• Saint-FĂ©lix-de-Valois
		27.9 km =17.3 mi, 
300°
• Louiseville
		27.3 km =17 mi, 
29°
• Nicolet
		43 km =26.7 mi, 
63°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016