On Tuesday, July 11, 2017 at 7:21:07 PM UTC-6, Paul Schlyter wrote:

They don't. Consider e.g Mars and Earth, which both are inner
planets. I think you:re confusing inner planets with inferiör
planets. .

You are correct, I meant inferior planets, I was just using the terminology I
found in the post to which I replied as I understood it from context.

John Savard