Night Light of Seven Pagodas (Tamil Nadu) from space (India) Src. Average luminocity for 10x10km area is 27.6948% and for 50x50km: 18.1887%.
Square area 10x10 km:
 0%
 2.16%
 3.68%
 2.6%
 4.76%
 10.39%
 4.33%
 9.09%
 7.79%
 25.54%
 29.65%Square area 50x50 km:
 0.79%
 2.58%
 4.35%
 2.1%
 3.63%
 3.7%
 3.08%
 3.03%
 4.07%
 9.86%
 62.81%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
13° 18' 22" North, 79° 29' 24.7" East
12° 37' 15.3" North, 80° 11' 35.9" East
11° 56' 1.9" North, 80° 53' 47.2" East
Some cities around Seven Pagodas sort by population:
• Tambaram
		34.5 km =21.4 mi, 
347°
• Chingleput
		24.8 km =15.4 mi, 
288°
• Gūduvāncheri
		28.8 km =17.9 mi, 
329°
• Injambakkam
		33.4 km =20.8 mi, 
10°
• Madambakkam
		30.3 km =18.8 mi, 
328°
• Vandalūr
		32.6 km =20.3 mi, 
337°
• Karumbākkam
		14.3 km =8.9 mi, 
309°
• Singapperumālkovil
		25.4 km =15.8 mi, 
307°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016