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Neptune is the outermost gas giant in our solar system. For most of its 165 year orbit it is the eighth planet from the Sun and occasionally the ninth due to Pluto's eccentricity. It is the fourth largest planet by diameter and the third largest by mass; Neptune is more massive than its near twin Uranus as its stronger gravitational field has compressed it to a higher density. The planet is named after the Roman god of the sea. Its astronomical symbol is a stylized version of the god's trident (♆).

Neptune's atmosphere is primarily composed of hydrogen and helium, with traces of methane that account for the planet's blue appearance. Neptune's blue colour is much more vivid than that of Uranus, which has a similar amount of methane, and an unknown component is presumed to cause the intense colour. "Neptune overview," Solar System Exploration, NASA. Neptune also has the strongest winds of any planet in the solar system, with estimates as high as 2,500 km/h. At the time of the 1989 Voyager 2 flyby, it had in its southern hemisphere a Great Dark Spot comparable to the Great Red Spot on Jupiter.

Faint dark colored rings have been detected around the blue planet, but are much less substantial than those of Saturn. When these rings were discovered by a team lead by Edward Guinan, it was thought that they might not be complete but this was disproved by Voyager 2. Neptune possesses nine confirmed moons and four awaiting confirmation. Neptune's largest moon, Triton, is notable for its retrograde orbit, extreme cold (38K), and extremely tenuous (14 microbar) nitrogen/methane atmosphere.

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where are u goin @realdiplomatic... & SMH never made it to neptune
dejamonedms (DeJaMoNe. HeFfNeR) Sun, 29 Nov 2009 00:01:27 -0000
where are u goin @realdiplomatic... & SMH never made it to neptune
square between Venus and Neptune, weak opposition between Mars and Jupiter, weak conjunction between Jupiter and Neptune
yakumoranbot (八雲藍(bot)) Sun, 29 Nov 2009 00:00:44 -0000
square between Venus and Neptune, weak opposition between Mars and Jupiter, weak conjunction between Jupiter and Neptune
square between Mercury and Uranus, weak sextile between Mercury and Neptune, weak trine between Venus and Uranus
yakumoranbot (八雲藍(bot)) Sun, 29 Nov 2009 00:00:38 -0000
square between Mercury and Uranus, weak sextile between Mercury and Neptune, weak trine between Venus and Uranus
strong sextile between Moon and Neptune, weak trine between Mercury and Mars, strong sextile between Mercury and Jupiter
yakumoranbot (八雲藍(bot)) Sun, 29 Nov 2009 00:00:28 -0000
strong sextile between Moon and Neptune, weak trine between Mercury and Mars, strong sextile between Mercury and Jupiter
Neptune: Aquarius 23°51′, Pluto: Capricornu 2°08′
yakumoranbot (八雲藍(bot)) Sun, 29 Nov 2009 00:00:21 -0000
Neptune: Aquarius 23°51′, Pluto: Capricornu 2°08′
Neptune Oyster or Cheesecake Factory (hehehe) ? Im in Boston.
itsmegrasha (J. Grace Adoe) Sat, 28 Nov 2009 23:59:22 -0000
Neptune Oyster or Cheesecake Factory (hehehe) ? Im in Boston.

 
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Astro Kids: Neptune - Includes images with the planet. Offers details about its temperature and its surface.
Meta Description: [ Astronomy.com, Astronomy Magazine, offers daily astronomy and space news, star charts, pictures of planets, space missions, eclipse and much more. ]

Astronomy For Kids: Neptune - Includes a picture and brief facts about this planet.

Astronomy for Kids: Neptune - Provides details about the location, the visibility and the moons of this planet.
Meta Description: [ Astronomy for Kids is an astronomy site designed with kids in mind, as well as their parents ]

Kids' Guide to Neptune - Details about the name, the movement and the moons of this planet.
Meta Description: [ Understand Neptune, the Planet of Dreams and Illusion. ]

KidsAstronomy.com: Neptune - Explains its name in Greek mythology and offers details about its gravity and its moons.
Meta Description: [ Learn About Neptune With KidsAstronomy.com ]

World Almanac for Kids: Neptune - Includes an overview of the planet together with brief facts about it.
Meta Description: [ World Almanac for Kids: Facts, games and helpful stuff for kids ages 8 and up. ]

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