Night Light of Petersham (New South Wales) from space (Australia) Src. Average luminocity for 10x10km area is 95.1346% and for 50x50km: 47.3164%.
Square area 10x10 km:
 51.05%
 28.85%
 12.76%
 6.99%
 0.35%
 0%
 0%
 0%
 0%
 0%
 0%Square area 50x50 km:
 11.54%
 12.52%
 6.54%
 7.31%
 8.15%
 4.16%
 2.65%
 3.44%
 5.11%
 7.88%
 30.7%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
33° 18' 32.3" South, 150° 27' 6.6" East
33° 53' 40.6" South, 151° 9' 17.8" East
34° 28' 34.5" South, 151° 51' 29.1" East
Some cities around Petersham sort by population:
• Marrickville
		1.4 km =0.9 mi, 
178°
• Leichhardt
		1.2 km =0.7 mi, 
5°
• Dulwich Hill
		1.8 km =1.1 mi, 
233°
• Camperdown
		2.1 km =1.3 mi, 
74°
• Annandale
		1.7 km =1.1 mi, 
40°
• Stanmore
		0.9 km =0.6 mi, 
86°
• Summer Hill
		1.6 km =1 mi, 
282°
• Haberfield
		1.6 km =1 mi, 
321°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016