Night Light of Chécy (Centre) from space (France) Src. Average luminocity for 10x10km area is 23.5099% and for 50x50km: 9.0748%.
Square area 10x10 km:
 3.41%
 3.41%
 0.57%
 2.7%
 1.56%
 3.98%
 5.11%
 5.4%
 10.8%
 18.89%
 44.18%Square area 50x50 km:
 1.8%
 2.13%
 0.54%
 0.78%
 1.01%
 1.24%
 1.17%
 1.14%
 2.27%
 4.37%
 83.54%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
48° 21' 48" North, 1° 19' 11.7" East
47° 53' 38.5" North, 2° 1' 22.9" East
47° 25' 13.5" North, 2° 43' 34.2" East
Some cities around Chécy sort by population:
• Orléans
		8.9 km =5.5 mi, 
276°
• Olivet
		9.9 km =6.2 mi, 
249°
• Fleury-les-Aubrais
		9 km =5.6 mi, 
299°
• Saint-Jean-de-Braye
		4 km =2.5 mi, 
301°
• Saint-Jean-de-la-Ruelle
		11.9 km =7.4 mi, 
279°
• Saint-Jean-le-Blanc
		8 km =5 mi, 
269°
• Saint-Denis-en-Val
		4.8 km =3 mi, 
241°
• Saint-Pryvé-Saint-Mesmin
		11.5 km =7.1 mi, 
263°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016