| 31. | The system has a low metallicity.
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| 32. | In general, stars with lower metallicity are smaller and hotter than stars with higher metallicity.
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| 33. | In general, stars with lower metallicity are smaller and hotter than stars with higher metallicity.
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| 34. | The age of the star is slightly older and have significantly higher metallicity than our Sun.
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| 35. | It has less metallicity than the Sun, suggesting that it is older than the Sun.
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| 36. | The metallicity of Caffau's star is less than 6.9?0 " 7.
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| 37. | The distinction between the three categories of nonmetals, in terms of receding metallicity is not absolute.
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| 38. | There are further variations, both in luminosity and temperature, due to metallicity and helium content.
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| 39. | This would pollute the star's external layers, resulting in a higher than normal metallicity.
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| 40. | GPs have a range of masses, but a more uniform metallicity than the sample compared against.
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