Night Light of Tvarditsa (Sliven) from space (Bulgaria) Src. Average luminocity for 10x10km area is 2.6939% and for 50x50km: 0.8347%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
43° 12' 52.5" North, 25° 11' 48.8" East
42° 42' 0" North, 25° 54' 0" East
42° 10' 52" North, 26° 36' 11.3" East
Some cities around Tvarditsa sort by population:
• Stara Zagora
36.5 km =22.7 mi, 215°
• Sliven
35.1 km =21.8 mi, 92°
• Kazanlak
41.9 km =26 mi, 257°
• Nova Zagora
25.9 km =16.1 mi, 158°
• Radnevo
44.6 km =27.7 mi, 176°
• Tryavna
37.5 km =23.3 mi, 299°
• Dryanovo
46.3 km =28.8 mi, 312°
• Elena
26 km =16.2 mi, 357°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016