| 21. | A is separated from its spectroscopic companion by 0.05 arcseconds.
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| 22. | Despite this, it is suspected of being a spectroscopic binary star.
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| 23. | It is a spectroscopic binary with an orbital period of 134 days.
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| 24. | It is a suspected variable and a suspected spectroscopic binary.
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| 25. | It is a spectroscopic binary with an orbital period of 437 days.
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| 26. | Most of his career was spent in the spectroscopic study of stars.
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| 27. | Component A1 was finally determined to be a spectroscopic binary.
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| 28. | The near-infrared counterpart was confirmed by spectroscopic observations.
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| 29. | The 4T MRI provides high resolution anatomical, functional and spectroscopic imaging.
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| 30. | This system is what astronomers term a double-lined spectroscopic binary.
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