Night Light of Madurāntakam (Tamil Nadu) from space (India) Src. Average luminocity for 10x10km area is 27.5195% and for 50x50km: 10.7126%.
Square area 10x10 km:
 0%
 2.81%
 6.28%
 4.55%
 1.95%
 3.9%
 8.44%
 5.84%
 4.55%
 31.82%
 29.87%Square area 50x50 km:
 0.13%
 0.71%
 1.73%
 1.08%
 1.16%
 2.15%
 2.61%
 2.85%
 4.09%
 10.04%
 73.46%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
13° 11' 49.8" North, 79° 10' 54.2" East
12° 30' 42" North, 79° 53' 5.5" East
11° 49' 27.7" North, 80° 35' 16.7" East
Some cities around Madurāntakam sort by population:
• Chingleput
		22.4 km =13.9 mi, 
26°
• Vandavāsi
		30.3 km =18.8 mi, 
268°
• Uttiramerūr
		17.9 km =11.1 mi, 
309°
• Seven Pagodas
		35.6 km =22.1 mi, 
70°
• Karumbākkam
		30.8 km =19.1 mi, 
46°
• Cheyyur
		22.1 km =13.7 mi, 
144°
• Wallajahbad
		31.7 km =19.7 mi, 
347°
• Singapperumālkovil
		30.6 km =19 mi, 
25°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016