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Since Neptune's orbit is so far from the sun, it receives a very small amount of heat and indeed the uppermost region of the atmosphere is -218 °C (55 K). There is no solid surface due to the fact that Neptune is a gas giant. Atmospheric temperatures gradually rise as you go deeper inside Neptune due to an internal source of heat. It is thought that this may be leftover heat generated by infalling matter during the planet's birth, slowly radiating away into space right now. Neptune's atmosphere has the highest wind speeds in the solar system, up to 2000 km/h, thought to be powered by this flow of internal heat. The internal structure resembles that of Uranus.
Neptune consists of (molten) rock and metal, bounded by a blend of rock, water, ammonia, and methane. The atmosphere, extending perhaps 10 to 20 percent of the way towards the center, is typically hydrogen and helium at high altitudes, but has increasing concentrations of methane, ammonia, and water as it approaches and finally blends into the liquid interior.
The pressure at the center of Neptune is millions of times more than that on the surface of Earth. Comparing its rotational speed to its degree of oblateness represents that it has its mass less concentrated towards the center than does Uranus.
Neptune also resembles Uranus in its magnetosphere, with a magnetic field strongly tilted relative to its rotational axis at 47° and offset at least 0.55 radii (about 13,500 kilometres) from the planet's physical center. Comparing the magnetic fields of the two planets, scientists think the extreme orientation may be characteristic of flows in the interior of the planet and not the result of Uranus' sideways orientation.
One disparity between Neptune and Uranus is the level of meteorological activity. Uranus is visually quite bland, while Neptune's high winds come with distinguished weather phenomena. The Great Dark Spot, an Earth-sized dark marking similar to the Great Red Spot of Jupiter, disappeared in 1994 but another reappeared afterward. Distinctive among the gas giants is the presence of high clouds casting shadows on the opaque cloud deck below.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoIt's hydrogen, helium and methane!.
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What is Neptune's atmospheric pressure compared to earth's atmospheric pressure?
42% higher
What is Neptune's atmospheric conditions?
Neptune's atmospheric conditions are icy cold grounds. There can't be life on it for another only the Lord knows when, which is propably never.
What makes Neptune bright azure blue?
The absorption of red light by the atmospheric methane is what gives neptune its blue hue, although neptunes vivid azure blue differs from Uranus' milder aquamarine
Why do Uranus and Neptune have blue methane clouds but Jupiter and Saturn do not?
Methane does not condense into ice in the warmer atmospheric temperatures of Jupiter and Saturn.
What atmospheric region has more ozone content?
The bottom of the stratosphere, commonly called the ozone layer.
What is Neptune's atmospheric gases?
it is hydrogen
What is Neptune's atmospheric pressure compared to earth's atmospheric pressure?
42% higher
What is Neptune's atmospheric conditions?
Neptune's atmospheric conditions are icy cold grounds. There can't be life on it for another only the Lord knows when, which is propably never.
What is nearly one percent of the atmospheric content?
argon
What type of Platen Neptune is?
Neptune is a Gas giant, but is also referred to as an "ice giant" to place emphasis on its atmospheric composition when compared to those of Saturn and Jupiter.
Can Neptune maintain human life?
No. It has no solid surface, no atmospheric oxygen, and is far too cold.
What two planets have similar appereances atmospheric compositions interiors and particle belts?
Neptune and Uranus
What has the author Bill R Sandel written?
Bill R. Sandel has written: 'Interpretation of Voyager UVS observations of occultations by the atmosphere of Neptune' -- subject(s): Atmospheric chemistry, Atmospheric composition, Photochemical reactions, Stellar occultation, Solar eclipses, Energy budgets, Neptune atmosphere
What are neptunes minor gases?
Neptune's minor atmospheric gases are ethane and hydrogen deuteride. Its major gases are hydrogen, helium, and methane. Neptune's blue appearance is caused by the mixture of these gases.
When does wooden furniture expand?
When the atmospheric humidity exceeds the moisture content of the wood.
What are the temperatures of Jupiter and Neptune?
The mean atmospheric temperature on Neptune is as low as -218°C at the cloud tops and about 72° K or -200° C at the pressure level equal to 1 Earth atmosphere.
Does Neptune radiate less heat than it the receives from the sun?
Neptune radiates MORE heat that it receives from the Sun - the reason is still unknown. Possible reasons are atmospheric interaction or magnetic waves.
