visual binary


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Related to visual binary: eclipsing binary, spectroscopic binary

visual binary

n.
A binary star that can be resolved visually or telescopically into its two components.
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References in periodicals archive ?
So far, no trustworthy case is known of a visual binary system having shown an eclipse.
2] pair is a visual binary with a period of only 265 years.
Preliminary orbital elements in the internet-based Sixth Catalog of Orbits of Visual Binary Stars give this pair an orbital period of 554 years, plus or minus 27 years.