| 21. | The rate of mass loss for luminous stars depends on the metallicity and luminosity.
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| 22. | The higher mass and metallicity tend to have more planets and more massive planets.
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| 23. | It has a metallicity of-1.8, a significantly low number.
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| 24. | Only population III stars, with very low metallicity, can reach this stage.
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| 25. | Despite its younger age, it has slightly lower metallicity, approximately 90 %.
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| 26. | It is a Population I star with metallicity of 55 % greater than solar.
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| 27. | The unusually low metallicity of Vega makes it a weak Lambda Bo�tis-type star.
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| 28. | In 2004, a stellar evolutionary model of Fomalhaut yielded a metallicity of 79 %.
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| 29. | This account is consistent with the observed negative correlation between stellar metallicity and red shift.
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| 30. | It is host to K . It has about half the metallicity of our Sun.
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