Wanted to do this for a while because, let's face it, infoboxes are quite convenient so I created the a new template for the Planets (maybe you've already seen the Cities template as well?).
Here's an page where the template has been added : Earth West 182,498,761
Question : what information would you like to see displayed in the template?
I personnally wanted to add a Joker/Diamond field but didn't find a way to display it that I found satisfying.