Night Light of El Khroub (Constantine) from space (Algeria) Src. Average luminocity for 10x10km area is 53.7517% and for 50x50km: 16.4494%.
Square area 10x10 km:
 4.9%
 12.94%
 4.55%
 8.92%
 7.87%
 11.36%
 13.99%
 7.69%
 21.15%
 6.64%
 0%Square area 50x50 km:
 1.87%
 3.66%
 2.1%
 2.54%
 1.55%
 1.9%
 2.72%
 2.43%
 3.61%
 8.69%
 68.94%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
36° 49' 41.5" North, 5° 59' 25.8" East
36° 15' 48" North, 6° 41' 37" East
35° 41' 39.6" North, 7° 23' 48.3" East
Some cities around El Khroub sort by population:
• Constantine
		13.3 km =8.3 mi, 
327°
• Aïn Fakroun
		36.3 km =22.6 mi, 
153°
• Hamma Bouziane
		18.7 km =11.6 mi, 
332°
• Telerghma
		34.5 km =21.4 mi, 
241°
• Aïn Kercha
		37.7 km =23.4 mi, 
179°
• ’Aïn Abid
		22.7 km =14.1 mi, 
98°
• Aïn Smara
		17.2 km =10.7 mi, 
271°
• Didouche Mourad
		21.6 km =13.4 mi, 
346°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016