Named after the Roman god of the sea; possessing a giant moon called Triton, named after Neptune's mighty weapon in Roman myth.

海王星的命名来源于罗马神话中的海神（注：海神在罗马神话作''Neptune''，希腊神话中为波塞冬''Poseidon''）；而海王星的卫星被命名为崔顿（即海卫一），这个名字在罗马神话中意为海神最强大的武器。

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There's a detailed article about how to find Neptune here. If you have a friend with a fair-sized telescope you may be able to see Triton, the biggest moon of Neptune.

这里有一个寻找海王星的小提示，若你有个拥有精准长筒望远镜的朋友，你或许能看到海神——海王星最大的卫星。

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The planet Pluto and the moon Triton have almost the same size and density.

冥王星与海卫一几乎同样大小，同样密度。

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In 1989, after a 12-year, 4-billion-mile space journey, Voyager 2 flew over the cloudtops of the giant planet Neptune and its moon Triton, sending back photographs of swampy areas, frozen lakes and craters.

CNN: Tuesday,