概述
HD 20781和另一颗恒星HD 20782组成距离相当远的联星系统。这两颗恒星有各自的行星系,且轨道形状是S形。这是第一个成员星都有各自行星系统的联星系[1][2][3]。
行星系统
参见
参考资料
外部链接
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