Astronomers have identified an exoplanet named Enaiposha, also known as GJ 1214 b, located 47 light-years from Earth. Initially classified as a mini-Neptune, further observations suggest it may belong to a different planetary category.
4.5 billion divided by 1 billion is 4.5. You’re off by an order of magnitude.
Also, there is a lot of stuff we can see within 47 light years. Stumbling across a planet that was ejected from our solar system is highly improbable, but even less so is that planet being captured by another star and having a stable orbit. Not impossible, mind you, but the lottery is a safer bet.
If I recall, the earth is 4.5 billion years old?
So if that planet was traveling at about 1/billionth the speed of light, it could be nearly 47 light years away now.
I think that’s roughly 1000km/h which sounds perfectly achievable considering we orbit the sun at 67,000km/h.
4.5 billion divided by 1 billion is 4.5. You’re off by an order of magnitude.
Also, there is a lot of stuff we can see within 47 light years. Stumbling across a planet that was ejected from our solar system is highly improbable, but even less so is that planet being captured by another star and having a stable orbit. Not impossible, mind you, but the lottery is a safer bet.