Night Light of Keren (Anseba) from space (Eritrea) Src. Average luminocity for 10x10km area is 2.7424% and for 50x50km: 0.1057%.
Square area 10x10 km:
 0%
 0%
 0%
 0%
 0.65%
 1.95%
 1.3%
 0.87%
 0.43%
 0.87%
 93.94%Square area 50x50 km:
 0%
 0%
 0%
 0%
 0.03%
 0.08%
 0.05%
 0.03%
 0.02%
 0.03%
 99.77%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
16° 27' 12.3" North, 37° 44' 52.6" East
15° 46' 40.5" North, 38° 27' 3.9" East
15° 6' 0.6" North, 39° 9' 15.1" East
Some cities around Keren sort by population:
• Asmara
		71 km =44.1 mi, 
133°
• Axum, ET
		186.5 km =115.9 mi, 
170°
• Massawa
		111.2 km =69.1 mi, 
99°
• Mendefera
		106.5 km =66.2 mi, 
158°
• Barentu
		118.7 km =73.8 mi, 
230°
• Adi Keyh
		143.7 km =89.3 mi, 
136°
• Dek’emhāre
		101.4 km =63 mi, 
140°
• Ak’ordat
		66 km =41 mi, 
247°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016