Night Light of Helensvale (Queensland) from space (Australia) Src. Average luminocity for 10x10km area is 65.6648% and for 50x50km: 17.8471%.
Square area 10x10 km:
 7.95%
 11.93%
 6.25%
 7.2%
 30.11%
 15.53%
 12.31%
 2.65%
 3.98%
 2.08%
 0%Square area 50x50 km:
 2.92%
 3.1%
 1.56%
 1.35%
 5.59%
 1.86%
 2.17%
 2.45%
 4.71%
 9.78%
 64.5%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
27° 17' 42.8" South, 152° 37' 46.7" East
27° 55' 5.8" South, 153° 19' 57.9" East
28° 32' 16" South, 154° 2' 9.2" East
Some cities around Helensvale sort by population:
• Upper Coomera
		6.5 km =4 mi, 
314°
• Pacific Pines
		3 km =1.9 mi, 
216°
• Oxenford
		3.7 km =2.3 mi, 
328°
• Hope Island
		5.6 km =3.5 mi, 
19°
• Coombabah
		3.8 km =2.4 mi, 
77°
• Arundel
		3.7 km =2.3 mi, 
125°
• Runaway Bay
		6.4 km =4 mi, 
85°
• Parkwood
		5 km =3.1 mi, 
143°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016