mehrfachsternsysteme?

There are not only single stars, but often also double stars or Double star systems, i.e. two stars that are strongly bound to each other and converge around a common focus. But even more than double stars are possible, that would then be multiple star systems, e.g. a triple star system. In the case of a triple star system, there is usually a double star and a single star that surrounds the common center of gravity. Multiple star systems are less common than double star systems. About 50% of all stars are double stars, about 20% of all star triple star systems, more than triple star systems are rare, but there are also.