Originally Posted by Shadowrunner340
It's news because we have actually found some empirical evidence in nature instead of just theorizing.
No star within 10 AUs is not evidence enough ... 10 AUs is not far enough to rule out the possibility of a host star. Frankly I am surprised this got published like this.
Jupiter is 5.2 AUs from our sun.
Neptune is 30 AUs from our sun.
Pluto is 40 AUs from out sun.
Though Jupiter is less than 10 AUs from the sun, clearly there are planets in our own system that are much more than 10 AUs from the sun.
The size of a planet does not have an effect on its ability to orbit a star. All planets regardless of their own mass orbit stars at the same rate in reference to the distance away from the star. This is why astronomers use the orbiting moons and planets to measure the mass of their host planets and stars, because orbits follow a constant set of laws that do not depend on the size of the orbiting object itself. The only thing that matters is the size of the host object. Lots of planets can and do orbit more than 10 AUs away from their host star and a Jupiter sized planet would be no more or less likely to orbit at a further distance than any other planet.