That’s the way I understood it at first. But after reading it again after reading the comments above, I can see the other way of viewing it.
I do agree with you that how the sentence is currently written it’s confusing.
I mean, the sentence either implies what I said before, or it implies that the barycenter is a point outside the sun. I really don’t see any other reading than those two.
It says it’s so massive they orbit a common point. That directly implies this only happens over a certain mass.
That’s the way I understood it at first. But after reading it again after reading the comments above, I can see the other way of viewing it. I do agree with you that how the sentence is currently written it’s confusing.
It says it’s so massive they orbit a common point outside the sun. Smaller planets don’t have their common point outside the sun.
I mean, the sentence either implies what I said before, or it implies that the barycenter is a point outside the sun. I really don’t see any other reading than those two.