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Double star
Two stars actually or apparently very close together.
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BSL Sign Languages
of double star
(BSL Version)
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BSL Explanation
of double star
(BSL Version – Glossary of Astronomy)
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Glossary of Astronomy – double star
- binary stars are sometimes called double stars.
- this occur refers to any two stars that are close together in the sky and therefore includes true binaries as well as stars that look close together when viewed from Earth but which are actually quite far apart.
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List of BSL Astronomy – D
- dark adaptation
- dark cloud
- dark matter
- dark sky
- dark sky discovery site
- dense core
- doppler effect
- double star
- dwarf planet
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