Night Light of Nellikkuppam (Tamil Nadu) from space (India) Src. Average luminocity for 10x10km area is 30.3657% and for 50x50km: 31.438%.
Square area 10x10 km:
 0%
 0.41%
 2.48%
 4.55%
 1.65%
 6.82%
 8.06%
 13.22%
 28.93%
 30.99%
 2.89%Square area 50x50 km:
 1.49%
 4.23%
 5.62%
 4.99%
 3.46%
 6.62%
 8.11%
 7.12%
 10.98%
 14.09%
 33.28%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
12° 27' 46.8" North, 78° 58' 1.3" East
11° 46' 31.9" North, 79° 40' 12.6" East
11° 5' 10.9" North, 80° 22' 23.8" East
Some cities around Nellikkuppam sort by population:
• Puducherry
		24.7 km =15.3 mi, 
44°
• Cuddalore
		10.8 km =6.7 mi, 
101°
• Villupuram
		26.6 km =16.5 mi, 
313°
• Panruti
		12.8 km =8 mi, 
270°
• Kurinjippādi
		26.5 km =16.5 mi, 
199°
• Valavanur
		18.8 km =11.7 mi, 
329°
• Vikravāndi
		32 km =19.9 mi, 
335°
• Ālappākkam
		20.3 km =12.6 mi, 
164°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016