Neptune
What does Neptune look like?
Neptune's moon
Neptune is the eighth planet from the Sun in our solar system. According to NASA, this blue gas giant is much larger than Earth, 17 times the mass of Earth and about 58 times the volume of Earth. The rocky portion of Neptune is surrounded by a muddy liquid mixture of water, ammonia, and methane ice.
Astronomer Galileo Galilei was one of the first to identify Neptune as a space object, but he assumed it was a star based on its slow motion. Nearly two hundred years later, in 1846, the French astronomer Erbine Jean-Joseph Le Warrier estimated the location of Neptune by studying the gravitational disturbances in the movements of Uranus, according to researchers at the University of St Andrews in Scotland. According to a summary. .
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At the same time, Le Warrier was calculating the existence of Neptune, as was the English astronomer John Couch Adams. The two scholars independently made almost identical mathematical predictions about the existence of Neptune. Le Warrier then reported his calculations to his colleague, the German astronomer Johann Gottfried Gale, and Gale and his assistant Henrik de Aristt, after seeing Neptune through binoculars at his observatory in Berlin, identified it. Confirmed Le Warrier's predictions.
According to all the other planets in the sky, and as Le Warrier suggested, this new world was given a name from Greek and Roman mythology - Neptune, the Roman god of the sea.
Related: The Biggest Mystery About Neptune
The only mission Neptune flew was Voyager 2 in 1989. Even today, many mysteries remain about the cold, blue planet, such as why its winds are so strong and why its magnetic field is moving. Although Neptune is of interest because it is in our own solar system, astronomers are also interested in learning more about the planet to help study the exoplanet. In particular, astronomers are interested in learning about the habitation of a world larger than Earth.
Like Earth, Neptune has a rocky center, but its atmosphere is so thick that it forbids the existence of life as we know it. Astronomers are still trying to figure out where the planet is so large that a large amount of gas could accumulate in its area, making life difficult or impossible.
What does Neptune look like?
The result of the absorption of red light by methane into the still unknown compound and most of the planet's hydrogen helium atmosphere.
Despite Neptune's distance from the sun, which means it receives very little sunlight to help warm and run its atmosphere, Neptune's winds can reach 1,500 miles per hour (2,400 kilometers per hour). Is the fastest ever in the solar system. The winds were linked to a major black storm that Voyager 2 tracked in the southern hemisphere of Neptune in 1989. This elliptical, clockwise "Great Dark Spot" was large enough to envelop the entire earth, and moved westward at a speed of about 750 miles per hour (1,200 kilometers per hour). The storm disappeared when the Hubble Space Telescope searched for it in later history, and since then, Hubble has seen the appearance and reappearance of other great black spots on Neptune over the past decade.
Due to the high temperature and pressure on Neptune and Uranus, scientists believe that compressed carbon in the form of diamonds causes a "diamond rain" phenomenon on these icy giants. In 2017, researchers were able to mimic the conditions that lead to the formation of diamonds in the lab, supporting the hypothesis that diamonds rain down on Neptune and Uranus.
Ultrasonic Neptune is photographed using a ground-based telescope.
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Neptune is surrounded by unusual circles, which are not uniform, but have bright thick clumps of dust called arcs. Rings are thought to be relatively young and short-lived. According to an article in the journal Icarus, ground-based observations announced in 2005 found that Neptune's rings were apparently more unstable than previously thought, with some rapidly declining.
Neptune's magnetic poles are pointed at about 47 degrees relative to the poles with which it rotates. Thus, the planet's magnetic field, which is about 27 times stronger than the Earth's, passes through wild swings during each rotation.
By studying the formation of clouds on the gas giant, scientists have been able to calculate that a day on Neptune is less than 16 hours. Neptune's elliptical, elliptical orbit keeps the planet approximately 2.8 billion miles (4.5 billion kilometers) or about 30 times farther from the Earth, which makes it invisible to the naked eye. Neptune orbits the Sun about once every 165 Earth years, and completes its first orbit since its discovery in 2011.
Every 248 years, Pluto orbits Neptune for 20 years or more, during which time it is closer to the Sun than Neptune. Nevertheless, Neptune is the farthest planet from the Sun, as Pluto was reclassified as a dwarf planet in 2006.
Neptune's moon
Neptune has 14 well-known moons, named after lesser sea gods and nymphs than Greek mythology. The largest Triton to date, discovered indirectly through beer on October 10, 1846 - amateur astronomer William Lasell, who discovered Triton, a wine maker to finance his telescopes. Used funds created as
Quick facts about Neptune
- Atmosphere composition (by volume): 80% hydrogen, 19% helium, 1.5% methane
- Magnetic field: about 27 times more powerful than the earth
- Mass Composition: 25% rock, 60-70% ice, 5-15% hydrogen and helium
- Internal structure: mantle mantle of water, ammonia and methane ice; Iron and magnesium silicate core
- Average distance from the sun: 2,795,084,800 miles (4,498,252,900 kilometers) (30,069 times higher than Earth)
- Pierre Helen (closest view to the Sun): 2,771,087,000 miles (4,459,630,000 km) (29.820 times the Earth)
- Ophelon (longest distance from the Sun): 2,819,080,000 miles (4,536,870,000 km) (30,326 times the Earth)
(Source: NASA)
Triton is Neptune's only spherical moon. The other 13 moons of the planet are randomly shaped. Triton is also unique as being the only large moon in the solar system to orbit its planet in the opposite direction of its planet's rotation - this "backward orbit" suggests that Triton may have been a dwarf planet someday. Which was captured by Neptune instead of being in place. According to NASA. Neptune's gravity is bringing Triton closer to the planet, meaning that millions of years from now, Triton will be so close to the forces of gravity that it will tear it apart.
Triton is extremely cold, with its surface temperature reaching about minus 391 degrees F (minus 235 degrees Celsius), making it one of the coldest places in the solar system. Nevertheless, Voyager 2 detected a geyser spewing more than 5 miles (8 km) of icy matter, indicating that its interior appears warm. Scientists are investigating the possibility of an underground ocean on an icy moon. In 2010, scientists discovered seasons on Triton.
Related: What would it be like to live on Neptune's moon Triton?
In 2020, NASA announced the possibility of a new space mission to visit Triton, called Trident. "Triton has always been one of the most intriguing and intriguing bodies in the solar system," said Louise Proctor, director of the Lunar and Planetary Institute at the Universities Space Research Association in Houston.
In 2013, scientists working with SETI used data from the Hubble Space Telescope to observe Neptune's "lost" moon. The 62-mile-wide (100 km) moon has been missing since Voyager 2 was discovered in 1989.
Also in 2013, scientists using the Hubble Space Telescope discovered the 14th moon, called S / 2004 N 1. It is the smallest moon in Neptune and is only 11 miles (18 kilometers) wide. It got its temporary name because it is the first satellite (S) of Neptune (N) to be found in photographs taken in 2004.
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