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木卫五十七

S/2003 J 5
发现
发现者Scott S. Sheppard等人
发现日期2003年
轨道参数
离心率0.307
轨道周期758.341日
轨道倾角166°
隶属天体木星
物理特征
平均半径~2 km

木卫五十七是环绕木星运行的一颗逆行不规则卫星。它在2003年被由Scott S. Sheppard领导的夏威夷大学一个天文小组发现。[1][2]

概述

木卫五十七的直径约4公里,公转轨道的平均半径为23.974 Gm,公转周期758.341日,轨道倾角166°,轨道离心率为0.307。

该卫星于2003年发现后曾经失踪,直至2017年方重新发现及获发永久编号。

参考资料

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木卫五十七
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