So what are the odds of this happening anywhere else? No one really knows, unfortunately. Only 893 planets have been discovered and named by astronomers so far, and our knowledge about their moons is equally sparse.
Based on our current knowledge of space, there may be millions or even billions of undiscovered planets, each of which may have one or more moons.
Ultimately, thanks to the vast numbers involved in the calculations, we can assume that some other planet, somewhere in the depths of space, also has the same size relationship between it's sun and moon — and maybe even intelligent life to view it!