Neptune – Distant Planet | Space TOU

Neptune – Distant Planet |  Space

 TOU

Neptune – Distant Planet | Space

Neptune, the eighth planet from the Sun – the farthest planet. This bright blue sphere, which hangs near the edge of the solar system, has received a similar intrigue from astronomers and scientists. Like its three inward relatives Jupiter, Saturn and Uranus, it is a large gas ball, so what’s so eager to explore this planet, and what have we learned from the limited observations we have made of it?

The planets we know as Neptune and its family moons, the largest of which is Triton, showed us how wonderful the universe is and helped us better understand our place in the universe. Here we will explore the physical properties of Neptune, mythology and observational history, space exploration, moons, etc., and determine what is most interesting to the scientific study of Neptune.

Properties of Neptune

Neptune orbits at a distance of about 2.8 billion miles (4.5 billion kilometers) from the Sun. 30 times From the sun to the earth. Like Jupiter, Saturn and Uranus, it is a gas giant, and its atmosphere is primarily made up of hydrogen and helium with little methane and a solid center the size of Earth in the middle. Like its three gas relatives, Neptune also has rings, but they are believed to be younger and shorter.

Neptune Rings filmed Voyager 2.  (Image courtesy: NASA JBL)

Neptune orbits far from the Sun, taking about 165 Earth years to complete one orbit, while Neptune takes about 16 hours a day. A unique feature of Neptune is that it is sometimes farther away than Pluto due to Pluto’s elliptical orbit.

The most striking feature of Neptune discovered by Voyager 2 is what scientists call a large rotating storm in the Southern Hemisphere. Big Dark Spot. This massive storm is like Jupiter’s big red dot.

The big dark dot of Neptune captured by Voyager 2.  (Image courtesy: NASA JBL)

Ancient astronomers

Because Neptune The helpless are invisible From Earth, like Uranus, it is not unique to mythological observations such as Saturn and nearby planets. This is why Neptune was definitely discovered through mathematical observation rather than empirical (real) observation. Nevertheless, when it was finally discovered it was named after the Roman god of the sea.

Neptune is not a planet Discovered until September 1846 By Johann Godfrey vacated, Urban Jean-Joseph Le WarrierAnd John Cooch Adams, All worked independently to help discover this wonderful world. As mentioned, Neptune’s discovery was made using mathematics, and more specifically, the analysis of data related to the orbit of Uranus. They observed discrepancies between the predicted and observed positions of Uranus, i.e. the planet was not in the mathematically predicted position.

Despite many hypotheses about these anomalies, some astronomers have begun to question the existence of another extraterrestrial body beyond Uranus. Mathematical calculations were carried out by Lee Warrier, while at the same time by Adams, no one knew about anyone else’s work. This later created international controversy over who was the “real” inventor named Neptune. Today, all three are proud to have discovered Neptune because the first person to see the planet through a telescope was empty.

Neptune spacecraft trips

Due to its incredible distance from the sun, the Voyager 2 The spacecraft is the only spacecraft to ever visit Neptune. This occurred in August 1989 and flew about 2980 miles (4800 km) above the cloud peak of Voyager 2 Neptune, the closest of the four orbiting orbits of the gas planets. When Voyager 2 traveled to the farthest planet from the Sun, it discovered six new moons (Protus, Larissa, Despina, Galatia, Thalassa and Nyate) and four new rings.

During the encounter, Neptune was found to be more active than previously thought, with Voyager 2 detecting wind speeds of up to 680-miles (1100 kilometers) per hour in its massive atmosphere. Another notable achievement was the encounter with Neptune 12 years after the launch of Voyager 2, with all 10 instruments of the spacecraft still in working order at this time.

Neptune moons

Before the encounter with Voyager 2, there was Triton Neptune is the only known moonBut now we know there is a gas giant 14 moons known. The largest moon was Triton and Voyager 2 Two-thirds photograph

Neptune (top) and Triton (bottom), three days after the 1989 Voyager 2 flyover.  (Image courtesy: NASA JPL)

In addition to Neptune’s largest moon, Triton is geographically active, Voyager 2 observed. Ice volcanoes On its surface, a bloom is measured at a height of more than five miles. These icebergs are thought to be compounds of liquid nitrogen, dust, or methane emitted from the center of the moon. Triton is believed to be called A Captured Moon, I.e. it did not initially form with Neptune and after a while Neptune entered orbit. This captured moon hypothesis could explain why Neptune’s largest and only geographically active moon is Triton, because the remaining 13 moons are barren balls of rock. Is Triton Too big All of the remaining 13 moons can fit within about 621 miles (1000 km).

Global Color Mosaic of Triton, taken by Voyager 2 in 1989.  Dark streaks are thought to be dust deposits left by nitrogen geysers.  (Image courtesy: NASA JPL)

Future missions for the Neptune system

When Many future missions There are no approved future missions to visit the Neptune system in July 2021. These include the proposed tasks Neptune Odyssey And a NASA’s primary mission; The two proposed missions are aimed at exploring Neptune and its largest moon, Triton, in more detail.

Both missions hope to explore how the interior and atmosphere of ice giants formed, and how gaseous asteroids formed, and explore whether Triton is really an oceanic world and the exact causes of its ice and volcanic eruptions.

As always, keep doing science & see above!

proof’s: NASA Solar System Study, Cool Cosmos, Greek mythology, Earthsky, NASA Solar System Study, Britannica, NASA Solar System Study, Science in a sphere, Astronomy.com, Education of the planets, Planetary Society, NASA Science, Bulletin of AAS

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