Neptune

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Jupiter, Uranus, and Neptune also have rings, but Saturn's are by far the largest and most spectacular.
木星，天王星和海王星也有環(huán)，但土星的環(huán)，是迄今為止規(guī)模最大，最為壯觀的。
Jupiter, Saturn, Uranus and Neptune. Those are the gas giants, the four heavyweights of the solar system. But was there once a fifth?
木星，土星，天王星和海王星。這些都是氣體行星，太陽系的四個重量級。但曾經(jīng)存在第五個行星嗎？
Moving on through the asteroid belt we enter the realms of the gas giant planets: Jupiter, Saturn, Uranus and Neptune, all of which dwarf the Earth.
穿過小行星帶繼續(xù)前進(jìn)，我們進(jìn)入了氣體巨行星區(qū)域：木星、土星、天王星、海王星，所有這些都使地球看起來像個侏儒。

Small changes in the movement of Neptune led several astronomers to believe that an undiscovered planet was affecting Neptune's orbit.
And Neptune with a Trident is helping lay the trans-Atlantic cable which was just being laid when he was painting this."
Earlier this month, on July twelfth, Neptune reached the same area in the sky that it occupied when it was first observed by Johann Galle.

Unidentified Man: Is Neptune a planet, because everybody knows that Neptune's orbit is crossed by Pluto's.
NPR: Pluto, the Un-Planet?

(PLANET) the planet eighth in order of distance and farthest from the Sun, after Uranus

the Roman god of the sea (Greek counterpart Poseidon)
the eighth planet from the sun, having eight satellites, the largest being Triton and Nereid, and a faint planar system of rings or ring fragments. Mean distance from sun: 4497 million km period of revolution around sun: 164.8 years period of rotation: 14 to 16 hours diameter and mass: 4.0 and 17.2 times that of earth respectively