Night Light of Gymea (New South Wales) from space (Australia) Src. Average luminocity for 10x10km area is 54.743% and for 50x50km: 36.2533%.
Square area 10x10 km:
 7.69%
 6.64%
 3.67%
 4.2%
 21.5%
 19.23%
 6.47%
 8.74%
 7.87%
 13.99%
 0%Square area 50x50 km:
 9.94%
 9.99%
 4.74%
 4.86%
 4.76%
 3.23%
 2.14%
 3.19%
 3.57%
 5.73%
 47.87%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
33° 27' 6.2" South, 150° 22' 55.8" East
34° 2' 10.9" South, 151° 5' 7" East
34° 37' 1.3" South, 151° 47' 18.3" East
Some cities around Gymea sort by population:
• Miranda
		1.4 km =0.9 mi, 
100°
• Caringbah South
		4 km =2.5 mi, 
124°
• Caringbah
		3.6 km =2.2 mi, 
88°
• Sutherland
		2.8 km =1.7 mi, 
282°
• Sylvania
		2.9 km =1.8 mi, 
22°
• Kirrawee
		1.5 km =0.9 mi, 
261°
• Jannali
		3.2 km =2 mi, 
314°
• Oyster Bay
		3.7 km =2.3 mi, 
346°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016