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Neptune is confirmed as a planet because it is partly made of gas much like other planets.However Pluto is made of ice and rock has no atmoshpere and because of its short distance to the Kuiper belt and its size makes astronomers wonder if this is a planet. Plus it doesn't clear it's path of objects that are in it's way.

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12y ago
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8y ago

Uranus is a planet because it orbits the sun, not Neptune and the two planets are quite far apart even at their closest approach. Uranus is nearly the same mass as Neptune, so even if they were close enough to form a planet-moon system, the result would be a binary planet.

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Q: Why is Neptune a planet and Pluto isn't?
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The planet Neptune crosses the orbit of Pluto in an elliptic orbit


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The planet before Neptune is Uranus. The planet after Neptune is Pluto but Pluto is know classified as a dwarf planet.


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Neptune and Uranus. It would be Pluto and Neptune but pluto is no longer a planet it is a dwarf planet


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