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What is the Aurora Borealis?

Vivid atmosphere

Vivid atmosphere

At his first observation in DecemberNeptune was almost stationary in the sky because it had just turned retrograde that day. Adams continued to work in —46 and produced several different estimates of a new planet. Challis vainly scoured the sky throughout August and September.

Challis later realised that he had observed the planet twice, on 4 and 12 August, but did not recognise it as a planet because he lacked an up-to-date star map and was distracted by his concurrent work on comet observations. Eventually, an international consensus emerged that both Le Verrier and Adams jointly deserved credit.

The first suggestion for a name came from Galle, who proposed the name Janus. In England, Challis put forward the name Oceanus.

Vivid atmosphere

This suggestion met with stiff resistance outside France. In Roman mythologyNeptune was the god of the sea, identified with the Greek Poseidon. The demand for a mythological name seemed to be in keeping with the nomenclature of the other planets, all of which, except for Earth, were named for deities in Greek and Roman mythology.

Status From its discovery in until the subsequent discovery of Pluto inNeptune was the farthest known planet. Neptune, like Uranusis an ice gianta subclass of giant planetbecause they are smaller and have higher concentrations of volatiles than Jupiter and Saturn.

Internal structure See also: Increasing concentrations of methaneammonia and water are found in the lower regions of the atmosphere. 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 The mantle is equivalent to 10 to 15 Earth masses and is rich in water, ammonia and methane.

This fluid, which has a high electrical conductivity, is sometimes called a water—ammonia ocean. The boundary between the two, the tropopauselies at a pressure of 0. The upper-level clouds lie at pressures below one bar, where the temperature is suitable for methane to condense. For pressures between one and five bars and kPaclouds of ammonia and hydrogen sulfide are thought to form.

Above a pressure of five bars, the clouds may consist of ammonia, ammonium sulfidehydrogen sulfide and water. Deeper clouds of water ice should be found at pressures of about 50 bars 5.

Underneath, clouds of ammonia and hydrogen sulfide may be found. There are also high-altitude cloud bands that wrap around the planet at constant latitude. Weather does not occur in the higher stratosphere or thermosphere.

Other candidates are gravity waves from the interior that dissipate in the atmosphere. The thermosphere contains traces of carbon dioxide and water, which may have been deposited from external sources such as meteorites and dust. This field may be generated by convective fluid motions in a thin spherical shell of electrically conducting liquids probably a combination of ammonia, methane and water [63] resulting in a dynamo action.

By contrast, Earth, Jupiter and Saturn have only relatively small quadrupole moments, and their fields are less tilted from the polar axis.

The magnetopausewhere the pressure of the magnetosphere counterbalances the solar wind, lies at a distance of 23— The tail of the magnetosphere extends out to at least 72 times the radius of Neptune, and likely much farther. The difference in flow direction is thought to be a "skin effect" and not due to any deeper atmospheric processes.

Voyager 2 observed weather phenomena on Neptune during its flyby, [76] but no comparable phenomena on Uranus during its fly-by.

Narrative Elements

This is interpreted as evidence for upwelling at the equator and subsidence near the poles because photochemistry cannot account for the distribution without meridional circulation.Neptune is the eighth and farthest known planet from the Sun in the Solar the Solar System, it is the fourth-largest planet by diameter, the third-most-massive planet, and the densest giant urbanagricultureinitiative.come 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.

Earth's atmosphere is leaking. Every day, around 90 tonnes of material escapes from our planet's upper atmosphere and streams out into space. Although missions such as ESA's Cluster fleet have. Rae Sremmurd Ticket Information. Vivid Seats can hook you up with the best Rae Sremmurd tickets.

Nothing is ever sold out as is the spot for . Neptune's Great Dark Spot and its companion bright smudge; on the west limb the fast moving bright feature called Scooter and the little dark spot are visible.

Vivid definition, strikingly bright or intense, as color, light, etc.: a vivid green. See more. What is it? The setting is the environment in which a story or event takes place. Setting can include specific information about time and place (e.g.

Boston, Massachusetts, in ) or can simply be descriptive (eg. a lonely farmhouse on a dark night).

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