It is known to lie far outside the orbit of Neptune.

History Neptune Beach was originally part of Jacksonville Beach.

These pre discovery observations were important in accurately determining the orbit of Neptune.

Neptune also has six known inner regular satellites, and six outer irregular satellites.

The presence of Neptune has a profound effect on the Kuiper belt's structure due to orbital resonances.

Beyond Neptune lies the Kuiper Belt, and finally the Oort Cloud, which may extend as far as a light year.

He was also one of the first to calculate the orbit of the first asteroid, 1 Ceres, in 1801.

In this respect the rings of Neptune are similar to faint dusty bands observed by Voyager 2 between the main rings of Uranus.

Historically it was thought that he believed it to be a fixed blue star, and so he is not credited with its discovery.

S 2004 N 1 is a small moon of Neptune, about in diameter, which orbits the planet in just under one Earth day.

John Herschel almost discovered Neptune the same way his father, William Herschel, had discovered Uranus in 1781, by chance observation.

The rings of Neptune are made of extremely dark material, likely organic compounds processed by radiation, similar to that found in the rings of Uranus.

Neptune has 14 named moons the largest, Triton, accounts for more than 99.5 percent of all the mass orbiting the planet.

Neptune's moons are an exception, as they are likely reaggregates of the pieces of the original bodies, which were disrupted after the capture of the large moon Triton.

There is evidence that Neptune was seen and recorded by Galileo Galilei in 1613, Jérôme Lalande in 1795 and John Herschel in 1830, but none is known to have recognized it as a planet at the time.

Recent plans included the modernization of Standard class frigates with new electronics and radar systems, the modernization of Glaukos and Poseidon class submarines with new sonars, electronics and air independent propulsion engines (programs Neptune I II).

This latter restriction excludes objects whose orbits may cross but which will never collide with each other due to orbital resonance, such as Jupiter and the Trojan asteroids, Earth and 3753 Cruithne, or Neptune and the plutinos.

Physicist Freeman Dyson suggests that we start looking for life on the moons of Jupiter and out past Neptune, in the Kuiper belt and the Oort cloud. He talks about what such life would be like and how we might find it.

Secondary characteristics Several planets or dwarf planets in the Solar System (such as Neptune and Pluto) have orbital periods that are in resonance with each other or with smaller bodies (this is also common in satellite systems).

This is much like Pluto, except that it is constrained to always be in the opposite phase of its orbit from Pluto Orcus is at aphelion when Pluto is at perihelion and vice versa.

Galileo's drawings show that he observed Neptune on December 28, 1612, and again on January 27, 1613 on both occasions, Galileo mistook Neptune for a fixed star when it appeared very close (in conjunction) to Jupiter in the night sky.

Finally, as Secretary General Kofi Annan stated in his latest report on Haiti, it is necessary to encourage the efforts to expedite pending sensitive cases, such as that of former Prime Minister Ivon Neptune, and to ensure due process for all citizens.