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18 hours ago · The similarity in size of Charon and Pluto has prompted some astronomers to call it a double dwarf planet. [152] The system is also unusual among planetary systems in that each is tidally locked to the other, which means that Pluto and Charon always have the same hemisphere facing each other — a property shared by only one other known system, Eris and Dysnomia . [ 153 ]
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18 hours ago · A rogue planet, also termed a free-floating planet (FFP) or an isolated planetary-mass object (iPMO), is an interstellar object of planetary mass which is not gravitationally bound to any star or brown dwarf. [1][2][3][4] Rogue planets may originate from planetary systems in which they are formed and later ejected, or they can also form on ...
18 hours ago · 补档 - 欢迎 关注 & 点赞 & 收藏 WX订阅号 & DY -“非线性列车” 下载文件通常为自解压文件，如果无法打开，或非 Windows 系统，也可以后缀改为 7z 打开，点击选择位置解压后会有使用说明； Dragon Age The Veilguard 龙腾世纪 影障守护者 [DLC 解锁] [Steam & Epic] [Windows & SteamOS] 下载 https://i.juij.fun/EA 备用 https://i ...
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