Night Light of Erdenet (Orhon) from space (Mongolia) Src. Average luminocity for 10x10km area is 27.6771% and for 50x50km: 1.4385%.
Square area 10x10 km:
 2.38%
 5.65%
 2.68%
 4.46%
 5.06%
 2.38%
 3.87%
 2.08%
 3.72%
 33.63%
 34.08%Square area 50x50 km:
 0.1%
 0.22%
 0.1%
 0.17%
 0.19%
 0.19%
 0.24%
 0.27%
 0.22%
 1.39%
 96.9%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
49° 29' 31.8" North, 103° 22' 48.8" East
49° 1' 60" North, 104° 4' 60" East
48° 34' 12.8" North, 104° 47' 11.3" East
Some cities around Erdenet sort by population:
• Darhan
		142.7 km =88.7 mi, 
69°
• Sühbaatar
		202.8 km =126 mi, 
48°
• Dzüünharaa
		174.6 km =108.5 mi, 
96°
• Kyakhta, RU
		225 km =139.8 mi, 
49°
• Bulgan
		47 km =29.2 mi, 
238°
• Zakamensk, RU
		159.7 km =99.2 mi, 
338°
• Harhorin
		224.5 km =139.5 mi, 
204°
• Petropavlovka, RU
		196.6 km =122.2 mi, 
26°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016