In light of recently revised observational measurements of the radius and spectroscopic parameters of the extremely old and metal-poor Gaia benchmark star HD 140283—also known as the Methuselah star due to prior suggestions that its age is in tension with the age of the universe—we present new, best estimates for the star’s mass and age from stellar modeling. These are derived using 1D stellar evolutionary tracks computed with MESA and the most up-to-date measurements from CHARA interferometry. Excluding modeling variance from the uncertainties, we report a mass of 0.809 0.001 M _⊙ and an age of 12.01 0.05 Gyr (1σ). When dominant sources of modeling uncertainty are taken into account, we report 0.81 0.05 M _⊙ and 12 0.5 Gyr, respectively. These results are consistent with recent literature, and the best-fitting age is not in conflict with the currently accepted age of the universe (13.5 Gyr).

根据最近修订的对极其古老且金属含量低的盖亚基准星 HD 140283 的半径和光谱参数的观测测量结果——也被称为玛土撒拉星，因为先前的建议认为它的年龄与宇宙年龄存在紧张关系——我们通过恒星建模提供了对恒星质量和年龄的新的、最佳的估计。这些是使用 MESA 计算的一维恒星演化轨迹和来自 CHARA 干涉测量的最新测量得出的。从不确定性中排除建模方差，我们报告质量为 0.809 0.001  M _⊙和年龄为 12.01 0.05 Gyr (1 σ )。当考虑建模不确定性的主要来源时，我们报告 0.81 0.05  M _⊙和 12 0.5 Gyr，分别。这些结果与最近的文献一致，最合适的年龄与目前公认的宇宙年龄（13.5 Gyr）并不冲突。