==Why is this article necessary?==
, why is this article necessary?
The title does not match the content; you have not created a List of planetary bodies, but a table of bodies in our solar system descending by diamter (without the Sun), or conceivably a List of solar system objects by radius.
If you want to completely recreate the article, I suggest discussing changes on Talk:List of solar system objects by radius and recreating the article first in your userspace (for an example of a Userspace "workshop," see User:Tznkai/Workshop).
I consider some of your changes meritous, but they first deserve discussion, and then if the consesus agrees they deserve a demonstrative implementation, and then lastly they deserve to be implemented into the article List of solar system objects by radius, not an article of largely the same content but different format and title.