binary-star and extrasolar planet?
hats_up asked:
I dint understand! a binary star is a star orbiting a star and it can be detected by the spectroscopic method (I think). Isn’t the same technique used to find extrasolar planet. how do we know which one is which?
I dint understand! a binary star is a star orbiting a star and it can be detected by the spectroscopic method (I think). Isn’t the same technique used to find extrasolar planet. how do we know which one is which?