Look, I’m not saying it is; I’m not saying it isn’t. Just consider these facts:
It’s fairly close to Earth.
It orbits a red star.
It masses 17 times what our planet does. Any being from that planet would have to be many times stronger than a human being.
On the other hand, this planet couldn’t possibly be Krypton — it’s still there. The real planet Krypton blew itself into billions of radioactive green, red, gold, and white chunks a few years before a kindly farm couple from Kansas adopted me as their son.
Oh. Maybe I’ve said too much.
Never mind.