Star Twins
Many stars seem to come in pairs, like twins. Some stars even come in triplets or greater numbers.
These multiple stars were formed at the same time, but they are often very different.
Sometimes a giant orange star is twinned with a medium-sized blue star. Sometimes a yellow star, like our sun, is matched with a white dwarf star.
Twin stars affect each other. If one star is heavier than the other, the lighter one will orbit the heavier one. If they are about the same weight, they will orbit the same point in the sky.
Such twin stars are often so close together, and so far from Earth, that they look like a single, twinkling star. Only with special instruments and telescopes can we tell that there is more than one star.
Picture Credit : Google
