babaonet wrote:What is the difference between double star and binary star?
babaonet wrote:IC. When two stars physically orbit each other its called a Binary star system. On the other hand while two stars being on the same line of sight to be virtually appears as one from earth is called a double star. That means one can call a binary star as double star because they also appear as one star from the earth, right? Is there any star system where more then two stars orbits each other as binary star system do?
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