总体来说，以上所述的就是太阳系了——包括围绕主要行星们运转的卫星、数不胜数的小行星(包括冥王星)以及彗星。

For the main part, that's it for the solar system — including a whole host of satellites orbiting the main planets and countless minor planets (including Pluto) and comets.

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据行星学家罗宾·卡纳普说，冥王星的所有三个卫星可以追溯回同一次撞击。

According to planetary scientist Robin Canup, all three of Pluto's satellites could trace back to a single impact.

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除了在此模拟的照片里所看到了行星和卫星外，我们的太阳系统还包含一个恒星、一些小行星和彗星，和像冥王星那样的侏儒行星。

In addition to the planets and moons seen in this simulated photo, our solar system contains a star, asteroids and comets, and dwarf planets such as Pluto.

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