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木卫十三

木衛十三
發現
發現者 查爾斯·科瓦爾
發現於 1974年,9月11日
軌道特徵
平均半徑 11,160,000km
離心率 0.16
公轉週期 240.92 d(0.654 a
公轉速度 平均:3.4 km/s
傾斜度 黃道交角 27.46°
與木星赤道交角 29.01°
木星 天然衛星之一
物理特徵
平均半徑 10km
表面積 ~1250 km²
體積 ~4200 km³
質量 1.1×1016 kg
平均密度 2.6 g/cm³
表面重力 ~0.0073 m/s2
逃逸速度 ~0.012 km/s
反照率 (可能)0.04
表面溫度 124K

木卫十三又稱為「勒達」(Leda),是环绕木星运行的一颗卫星

概述

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木卫十三是一顆逆行不規則衛星,在1974年9月11日被查爾斯·科瓦爾發現,由希臘神話中的勒達宙斯的情人)命名。
木卫十三跟另外四顆的衛星希瑪利亞群的一員,它們離木星距離從1100萬公里道1300萬公里不等,與黃道交角在27.5°左右。木卫十三因為受到太陽的攝動,因此的軌道非常的不穩定。

参见

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木卫十三
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