Two stars that are physically associated (move together through space) are called
A) double stars
B) main sequence stars
C) brown dwarf pairs
D) first contact stars
E) binary stars

Question

Quizplus · Accepted Answer

Binary stars are the only option that refers to two stars that are physically associated and move together through space. Double stars and main sequence stars do not necessarily move together, and brown dwarfs and first contact stars are not commonly used terms in the study of binary systems.

Two Stars That Are Physically Associated (Move Together Through Space)