Optical Binary

Astronomical Dictionary

Not a true binary system; two stars which appear in alignment from the perspective of the Earth which are actually an enormous distance apart. They are not physically associated with one another and lie at vastly different distances. Optical binaries are also known as visual binaries.

 
Astronomical [1] [2] [3] [4] [5] [6] [7] [8] [9]

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Astronomical Dictionary
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