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English: Diagram of the planet Neptune. Upper atmosphere, top clouds. Atmosphere consisting of hydrogen, helium, and methane gas. Mantle consisting of water, ammonia, and methane ices. Core consisting of rock (silicates and nickel-iron).
Size of this PNG preview of this SVG file: ... Diagram of the planet Neptune. Sources: 1, 2, 3, ... You are free: to share – to copy ...
The following other wikis use this file: Usage on af.wikipedia.org Neptunus; Aardmassa; Usage on bar.wikipedia.org Neptun (Planet) Usage on be.wikipedia.org
In the Solar System, it is the fourth-largest planet by diameter, the third-most-massive planet, and the densest giant planet. Neptune is 17 times the mass of Earth and is slightly more massive than its near-twin Uranus, which is 15 times the mass of Earth and slightly larger than Neptune.
Neptune has long been known to have white clouds circling it, but images of the furthest planet in the solar system have shown this changing over time - the most recent image, taken by the Hubble ...
As with Uranus, this absorption of red light by atmospheric methane is part of what gives Neptune its faint blue hue, [85] which is more pronounced for Neptune's due to concentrated haze in Uranus's atmosphere. [86] [87] Neptune's atmosphere is subdivided into two main regions: the lower troposphere, where temperature decreases with altitude ...
A total of five planets are going retrograde between May and September: Mercury, Saturn, Uranus, Neptune and Pluto. "Retrograde" is a term used to describe when a planet's orbit appears to slow.
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