is neptune a gas planet?
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Neptune, like Uranus, is an ice giant. It's similar to a gas giant. It is made of a thick soup of water, ammonia, and methane flowing over a solid core about the size of Earth. Neptune has a thick, windy atmosphere.
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The size, mass, composition and rotation of Uranus and Neptune are in fact so similar that they are often called planetary twins. These parameters lie between those of the Earth and the giants Jupiter and Saturn.
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['Neptune was not known to the ancients. ... ', 'Neptune spins on its axis very rapidly. ... ', 'Neptune is the smallest of the ice giants. ... ', 'The atmosphere of Neptune is made of hydrogen and helium, with some methane. ... ', 'Neptune has a very active climate. ... ', 'Neptune has a very thin collection of rings.']
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Earth is not a Jovian Planet as it is a Terrestrial planet. A planet designated as Jovian is hence a gas giant, composed primarily of hydrogen and helium gas with varying degrees of heavier elements. Within the Solar System, four Jovian planets exist – Jupiter, Saturn, Uranus, and Neptune.
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The four outer planets have faster orbits and spins, a composition of gases and liquids, numerous moons, and rings. The outer planets are made of hydrogen and helium, so they are called gas giants.
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A giant planet, Neptune's atmosphere is made of hydrogen, helium, and methane. These components, specifically methane, are what give the planet its blue color. This is because methane's gaseous composition absorbs red light and reflects blue light outward.
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The average temperature on Neptune is about minus 200 degrees Celsius (minus 392 degrees Fahrenheit). Neptune, the farthest known planet of our solar system, is located about 30 times farther away from the sun than Earth is.
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Life on Neptune. ... To find life on Neptune, the planet would need to have a source of energy that bacterial life can exploit, as well as a standing source of liquid water. At its surface, the temperature of Neptune dips down to 55 Kelvin. That's very cold, and there's no way liquid water could exist.
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The diameter of Neptune is approximately 49,500 km. This makes Neptune the 4th largest planet in the Solar System. And compared to Earth? Neptune is 3.9 times bigger.
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The gas giants — Jupiter and Saturn — contain far more gas than rock or ice. Uranus and Neptune are called ice giants because they are smaller and compositionally different from Jupiter and Saturn, the gas giants. ... This is why they are called gas giants: They are mostly gaseous, with very little rock and ice.
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The outer four planets (Jupiter, Saturn, Uranus, and Neptune) were able to keep their original atmospheres. They have very thick atmospheres with proportionally small solid cores while the the inner four planets have thin atmospheres with proportionally large solid parts.
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In short, since Saturn is colder than Jupiter at any particular altitude, its cloud layers occur deeper within it's atmosphere. Uranus and Neptune, due to their even lower temperatures, are able to hold condensed methane in their very cold tropospheres, whereas Jupiter and Saturn cannot.
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Non-terrestrial planets Not all planets are terrestrial. In our solar system, Jupiter, Saturn, Uranus and Neptune are gas giants, also known as Jovian planets. It's unclear what the dividing line is between a rocky planet and a terrestrial planet; some super-Earths may have a liquid surface, for example.
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Neptune. Most would say the coldest planet in our solar system is the frosty Neptune. ... Neptune is known as an Ice Giant and for a good reason. It has an average temperature of around -214 degrees Celsius.
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A gas giant is a large planet composed mostly of gases, such as hydrogen and helium, with a relatively small rocky core. The gas giants of our solar system are Jupiter, Saturn, Uranus and Neptune.
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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. It has an equatorial radius of 24,900 kilometers (about 1.4 Earth radii).
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Physical characteristics The planet is often dubbed an ice giant, since at least 80% of its mass is a fluid mix of water, methane and ammonia ice. Unlike the other planets of the solar system, Uranus is tilted so far that it essentially orbits the sun on its side, with the axis of its spin nearly pointing at the star.