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一颗位于天秤座的红超巨星 来自维基百科,自由的百科全书
HE 1523-0901是一颗位于天秤座的红巨星,它在银河系内,距离地球大约7500光年。它被认为是一颗第二星族星(或贫金属星)为目前发现年龄最老的恒星([Fe/H] = −2.95)。它的质量为太阳的0.8倍。通过欧洲南方天文台的甚大望远镜测量出为132亿年,而宇宙年龄大约为137亿年。
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