Night Light of Héliopolis (Guelma) from space (Algeria) Src. Average luminocity for 10x10km area is 41.2436% and for 50x50km: 7.2882%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
37° 4' 0.2" North, 6° 44' 22.7" East
36° 30' 13" North, 7° 26' 34" East
35° 56' 10.9" North, 8° 8' 45.2" East
Some cities around Héliopolis sort by population:
• Guelma
4.8 km =3 mi, 197°
• Azzaba
39.9 km =24.8 mi, 311°
• Besbes
42.3 km =26.3 mi, 58°
• Drean
34.1 km =21.2 mi, 53°
• Sedrata
42.5 km =26.4 mi, 168°
• El Hadjar
42.4 km =26.3 mi, 38°
• Boumahra Ahmed
8.1 km =5 mi, 128°
• Berrahal
36.9 km =22.9 mi, 1°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016