Night Light of Pa Daet (Chiang Rai) from space (Thailand) Src. Average luminocity for 10x10km area is 5.6653% and for 50x50km: 2.8811%.
Square area 10x10 km:
 0.41%
 0.41%
 0.41%
 1.65%
 0.83%
 0%
 1.65%
 1.24%
 0%
 0.41%
 92.98%Square area 50x50 km:
 0.02%
 0.31%
 0.34%
 0.36%
 0.23%
 0.28%
 1.06%
 0.98%
 0.61%
 0.78%
 95.05%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
20° 9' 58.6" North, 99° 17' 21.4" East
19° 30' 17.6" North, 99° 59' 32.7" East
18° 50' 26.8" North, 100° 41' 43.9" East
Some cities around Pa Daet sort by population:
• Chiang Rai
		47.9 km =29.8 mi, 
339°
• Mae Chan
		72.9 km =45.3 mi, 
348°
• Dok Kham Tai
		38.1 km =23.7 mi, 
179°
• Phayao
		36.8 km =22.9 mi, 
198°
• Pong
		49.4 km =30.7 mi, 
143°
• Chiang Kham
		32.3 km =20.1 mi, 
86°
• Chiang Saen
		86.2 km =53.6 mi, 
6°
• Mae Chai
		25.7 km =16 mi, 
226°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016