Night Light of Srīperumbūdūr (Tamil Nadu) from space (India) Src. Average luminocity for 10x10km area is 72.7706% and for 50x50km: 54.8948%.
Square area 10x10 km:
 3.25%
 14.5%
 23.81%
 13.2%
 22.08%
 15.58%
 6.06%
 1.52%
 0%
 0%
 0%Square area 50x50 km:
 5.41%
 11.85%
 16.31%
 6.75%
 9.25%
 8.55%
 6.12%
 6.69%
 7.67%
 10.55%
 10.83%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
13° 39' 6.7" North, 79° 14' 19.9" East
12° 58' 3.5" North, 79° 56' 31.1" East
12° 16' 53.4" North, 80° 38' 42.4" East
Some cities around Srīperumbūdūr sort by population:
• Tambaram
		20.6 km =12.8 mi, 
103°
• Poonamalle
		20.8 km =12.9 mi, 
64°
• Tiruvallur
		19.9 km =12.4 mi, 
349°
• Gūduvāncheri
		18.7 km =11.6 mi, 
136°
• Tinnanūr
		18.8 km =11.7 mi, 
29°
• Madambakkam
		17.1 km =10.6 mi, 
138°
• Vandalūr
		17.2 km =10.7 mi, 
119°
• Nandambakkam
		13.7 km =8.5 mi, 
85°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016