Astronomers had noticed unexpected changes in the orbit of Uranus: the only explanation was another planet. Detailed study of the orbit of Uranus led to estimates about the size and location of Neptune.
Astronomers now realize that Pluto does not have nearly enough mass to noticeably affect the orbits of Uranus or Neptune.
i think they didnt do with pluto because this planet is to high away from earth and too cold i dont know if their machines can hold up to -1500 Celciius
It is no longer classified as a planet as astronomers now believe its a asteroid that got pulled into an orbit with our sun. Some also believe it to be a misplaced moon of Neptune.
I have the planet Neptune in focus, now. Follow Neptune!
i want the answer now
Neptune has 13 moons ,as of now (2012).
With Pluto now regarded as a dwarf planet, the answer is Neptune. There are times when Pluto's orbit takes it inside Neptune for about 20 years at a time out of its 248 year orbit, as it did from 1979 to 1999. So even when Pluto was considered a planet, it wasn't always the furthest away from the Sun.
thank me later-They believe it doesn't, because it doesn't to any measurable extent.The reverse is not true: Neptune has a very, very strong effect on Pluto's orbit. In fact, Pluto completes almost exactly three orbits for every two of Neptune's, and this is not a coincidence; such stable resonances are common.
There are 88 constellations recognized by astronomers right now.
The cover page of "The Son of Neptune" by Rick Riordan features a trident submerged in water, with a dark, stormy sky in the background. The font is bold and metallic, giving it a powerful and mysterious look that reflects the book's theme of Roman mythology.
Not without their spaceship.
Neptune Was a Mythical King, And now, one of our planets is named after him.