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