HST FGS-1r parallaxes for 8 metal-poor stars
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Hubble Space Telescope (HST) fine guidance sensor observations were used to obtain parallaxes of eight metal-poor ([Fe/H]< -1.4) stars. The parallaxes of these stars...
本数据集采用哈勃空间望远镜（Hubble Space Telescope, HST）的精细制导传感器观测数据，获取了8颗金属丰度低于-1.4（[Fe/H] < -1.4）的贫金属星的视差。上述恒星的视差……
