Night Light of San Kamphaeng (Chiang Mai) from space (Thailand) Src. Average luminocity for 10x10km area is 60.0186% and for 50x50km: 33.863%.
Square area 10x10 km:
 2.89%
 10.74%
 15.29%
 8.06%
 12.19%
 14.46%
 13.84%
 6.82%
 12.81%
 2.89%
 0%Square area 50x50 km:
 5.26%
 7.77%
 6.92%
 3.44%
 3.77%
 5.25%
 6.85%
 5.41%
 5.12%
 6.29%
 43.92%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
19° 24' 33.7" North, 98° 24' 59.1" East
18° 44' 41.5" North, 99° 7' 10.3" East
18° 4' 39.8" North, 99° 49' 21.6" East
Some cities around San Kamphaeng sort by population:
• Chiang Mai
		15.1 km =9.4 mi, 
289°
• Lampang
		63.9 km =39.7 mi, 
141°
• Lamphun
		21.8 km =13.5 mi, 
212°
• Hang Dong
		22 km =13.7 mi, 
253°
• San Pa Tong
		26.9 km =16.7 mi, 
241°
• Pa Sang
		30.8 km =19.1 mi, 
217°
• Chom Thong
		59.4 km =36.9 mi, 
232°
• Mae Tha
		31.2 km =19.4 mi, 
175°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016