BSL Astronomy – binary star

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Binary star
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BSL Sign Languages
of binary star

(BSL Version)
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BSL Explanation
of binary star

(BSL Version – Glossary of Astronomy)
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Glossary of Astronomy – binary star

  • a binary star is actually a pair of stars that are held together by the force of gravity.
  • although occasionally the individual stars that compose a binary star can be distinguished, they generally appear as one star.
  • often look like a single star to the naked eye.
  • if more than two stars orbit a common centre of gravity, it is called a multiple star.

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