Night Light of Bānka (Bihar) from space (India) Src. Average luminocity for 10x10km area is 40.6667% and for 50x50km: 13.2245%.
Square area 10x10 km:
 3.03%
 3.03% 2.65%
 2.65% 3.03%
 3.03% 4.36%
 4.36% 7.01%
 7.01% 11.17%
 11.17% 10.04%
 10.04% 15.34%
 15.34% 24.24%
 24.24% 18.94%
 18.94% 0.19%
 0.19%Square area 50x50 km:
 0.32%
 0.32% 0.63%
 0.63% 0.6%
 0.6% 1.12%
 1.12% 1.98%
 1.98% 2.81%
 2.81% 3.92%
 3.92% 4.65%
 4.65% 6.68%
 6.68% 14.41%
 14.41% 62.89%
 62.89%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
25° 31' 1.6" North, 86° 13' 10" East
24° 52' 51.3" North, 86° 55' 21.3" East
24° 14' 29.1" North, 87° 37' 32.5" East
Some cities around Bānka sort by population:
• Bhāgalpur
		40.7 km =25.3 mi,  6°
6°
• Godda
		29.9 km =18.6 mi,  101°
101°
• Jhā-Jhā
		56.2 km =34.9 mi,  257°
257°
• Kharagpur
		45.8 km =28.5 mi,  306°
306°
• Colgong
		52.8 km =32.8 mi,  36°
36°
• Amarpur
		17.8 km =11.1 mi,  353°
353°
• Jasidih
		49.5 km =30.8 mi,  214°
214°
• Asarganj
		38.3 km =23.8 mi,  321°
321°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016