Night Light of Mae Chan (Chiang Rai) from space (Thailand) Src. Average luminocity for 10x10km area is 22.4484% and for 50x50km: 8.1582%.
Square area 10x10 km:
 0.4%
 2.78%
 4.76%
 0.79%
 3.77%
 0.99%
 6.15%
 6.94%
 7.94%
 18.45%
 47.02%Square area 50x50 km:
 0.2%
 1.2%
 1.43%
 0.72%
 1.19%
 0.71%
 2.03%
 1.6%
 1.93%
 6.07%
 82.91%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
20° 48' 19.6" North, 99° 8' 58" East
20° 8' 48.3" North, 99° 51' 9.2" East
19° 29' 6.9" North, 100° 33' 20.5" East
Some cities around Mae Chan sort by population:
• Chiang Rai
		26.6 km =16.5 mi, 
184°
• Tachilek, MM
		33.6 km =20.9 mi, 
5°
• Mae Sai
		32 km =19.9 mi, 
4°
• Ban Houakhoua, LA
		63.7 km =39.6 mi, 
79°
• Chiang Khong
		59 km =36.7 mi, 
77°
• Ban Houayxay, LA
		60.6 km =37.7 mi, 
76°
• Chiang Saen
		28.3 km =17.6 mi, 
59°
• Fang
		71.4 km =44.4 mi, 
249°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016