Would this material be useful to somehow find the size of Naruto's planet? In Kakashi Retsuden we have an example that we can use to measure some things, horses take 3 days to cross from the capital of Redaku to Nagare Village while Kakashi could travel that distance in a few hours:
On the map the distance between the capital and Nagare Village in the country of Redaku is so insignificant that they are basically shown in the same place, the distance between the country of fire and Redaku is said to be unimaginable:
It is said in Gaara Hiden that the average shinobi is faster than horses and also has great endurance when it comes to running:
But it takes 30 days to go from Konoha to Redaku for an average jounin:
For above average jounins, going at full speed, there is no way to go from Suna to Konoha in less than 3 days:
Redaku is located to the west of the Land of Fire:
https://imgur.com/a/uA2gWvb
The main continent where Redaku and the Land of Fire are located is only one of the three continents that we know exist in the world of Naruto:
https://imgur.com/a/MfqnYji
Using the maximum distance that horses can run in a single day could be used as a low ball because the "normal" animals in Naruto have and can use chakra, a proof that they are far above the levels of the common animals of our world:
https://imgur.com/a/ncvQOYA
In my opinion the only thing that Naruto's planet shares with ours is just its name, it is completely different in other aspects, although I don't know if that would be enough to "break" the wiki's rigorism when it comes to this.