Location map of Japan
Equirectangular projection.
Geographic limits to locate objects in the main map with the main islands:

N: 45°51'37" N (45.86°N)
S: 30°01'13" N (30.02°N)
W: 128°14'24" E (128.24°E)
E: 149°16'13" E (149.27°E)Geographic limits to locate objects in the side map with the Ryukyu Islands:

N: 39°32'25" N (39.54°N)
S: 23°42'36" N (23.71°N)
W: 110°25'49" E (110.43°E)
E: 131°26'25" E (131.44°E)
Own work
Maximilian Dörrbecker (Chumwa)