[MarineBrat]

I hve never heard of one star orbiting another.

Most of the stars in our galaxy are part of binary/trinary/multiple star systems. It's very common to have two stars orbiting each other relatively closely, and have yet another star(s) orbiting the two of them at a much greater distance.

[captain anode]

Perhaps the newly discovered star is more distant but on the same course as the other two relative to the earth. Isn't it is recorded historically as such for the last few thousand years?

The whole universe seems to work like a fine watch, amazing isn't it!

[WestVirginiaRebel]

Our own system would have been one if Jupiter hadn't decided to remain a planet.