Night Light of Arris (Batna) from space (Algeria) Src. Average luminocity for 10x10km area is 18.8531% and for 50x50km: 5.0282%.
Square area 10x10 km:
 0.7%
 3.32%
 2.1%
 2.45%
 1.92%
 4.9%
 3.15%
 1.4%
 1.22%
 10.31%
 68.53%Square area 50x50 km:
 0.08%
 0.6%
 0.66%
 0.6%
 0.63%
 0.74%
 0.83%
 1.09%
 0.65%
 1.85%
 92.26%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
35° 49' 51.3" North, 5° 38' 38.1" East
35° 15' 31.7" North, 6° 20' 49.4" East
34° 40' 57.5" North, 7° 3' 0.6" East
Some cities around Arris sort by population:
• Biskra
		72.4 km =45 mi, 
231°
• Batna
		36.6 km =22.7 mi, 
334°
• Khenchela
		74.9 km =46.5 mi, 
74°
• Aïn Touta
		42.6 km =26.5 mi, 
287°
• Merouana
		57.2 km =35.5 mi, 
316°
• Tazoult-Lambese
		26 km =16.2 mi, 
342°
• Sidi Okba
		70.2 km =43.6 mi, 
215°
• Zeribet el Oued
		65.8 km =40.9 mi, 
166°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016