A group of stars very close together as seen from the earth, especially one whose members are in fact close together and rotate around a common centre.
聚星，多重星
Example sentencesExamples
Of the first 450 pulsars discovered, only seven were definitely in a binary system, despite the fact that most O-stars, the precursors of pulsars, are in multiple star systems.
Most stars are actually binary or multiple stars.
They're systems of multiple stars so far from Earth that to the naked eye, each system appears to be a single entity.
It transpires that in this region of our galaxy, binary and multiple star systems are more common than singletons like our Sun.
Definition of multiple star in US English:
multiple star
noun
A group of stars very close together as seen from the earth, especially one whose members are in fact close together and rotate around a common center.
聚星，多重星
Example sentencesExamples
It transpires that in this region of our galaxy, binary and multiple star systems are more common than singletons like our Sun.
Of the first 450 pulsars discovered, only seven were definitely in a binary system, despite the fact that most O-stars, the precursors of pulsars, are in multiple star systems.
They're systems of multiple stars so far from Earth that to the naked eye, each system appears to be a single entity.