Night Light of Dee Why (New South Wales) from space (Australia) Src. Average luminocity for 10x10km area is 43.7454% and for 50x50km: 27.6079%.
Square area 10x10 km:
 5.68%
 7.51%
 4.21%
 4.76%
 13.37%
 4.4%
 5.49%
 8.06%
 16.48%
 19.41%
 10.62%Square area 50x50 km:
 6.85%
 7.18%
 3.38%
 4.18%
 5.37%
 2.1%
 1.33%
 2%
 2.91%
 5.27%
 59.42%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
33° 9' 52.2" South, 150° 35' 8.7" East
33° 45' 4" South, 151° 17' 19.9" East
34° 20' 1.4" South, 151° 59' 31.2" East
Some cities around Dee Why sort by population:
• Freshwater
		3.1 km =1.9 mi, 
185°
• Narrabeen
		4.3 km =2.7 mi, 
10°
• Collaroy
		2.4 km =1.5 mi, 
28°
• Cromer
		2.9 km =1.8 mi, 
318°
• Beacon Hill
		2.8 km =1.7 mi, 
266°
• Allambie Heights
		4 km =2.5 mi, 
244°
• Narraweena
		1.2 km =0.7 mi, 
248°
• Manly Vale
		4.5 km =2.8 mi, 
213°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016