"Huygens-Cassini" - automatic interplanetary station: the study of Saturn

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2018-03-26 07:47:16

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In 1973 had initiated a global study one of the planets of the solar system-Saturn. American scientists in space was released interplanetary station under the name “pioneer 11”. This allowed us to learn much about distant and mysterious planet to see its beauty and explore the surface. Over time, scientists realized that they needed to get more information about the cosmic giant, only to have another character. And this was developed for the mission two vehicles "Cassini", "Huygens". Interest in the planet will not only learn more about its characteristics, but may be the beginning of new research and inventions on Earth. In addition to the beautiful pictures of Saturn, the device transmits data on the composition of the soil, the height of different values, and most importantly, helps to elaborate on the satellites of the outer giants. Perhaps after learning more about them, we will be able to unravel more of the mysteries of the universe, and they were still very, very much.

General information about the device

To send the US mission had to spend about three billion dollars to conduct research on a distant planet. Three of the most renowned and talented organizations exploring space, doing the development and construction of equipment, in addition, the course was attended by seventeen different countries.Cassini Huygens They made the machine, whose height was ten meters and a launch weight was about six tons. Automatic station "Huygens" was equipped with twelve scientific instruments, and a rod for the magnetometer and the wiring length of fourteen kilometers. It was one of the most expensive and important to explore the space of development at the time.

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Apparatus "Cassini"

The Communication with Earth was developed by the Italian company. She has equipped the unit four-meter antenna. In connection with the place that he had to use solar decided not to use, because they won't have there's no point. Instead, as a power generator was used and three thermoelectric radioisotope generator. They filled thirty-three kilograms of highly radioactive plutonium acting as the fuel. This amount is enough for two hundred years of operation. By the way, about half the weight of the station, "Huygens-Cassini" is the fuel with which the apparatus is inhibited, out to the orbit of Saturn and carried out other required mission maneuvers.

"Huygens"

This is a common space probe, which according to the plans the creators had to land on the satellite giant – Titan. It is equipped with six instruments designed specifically to explore the moon's surface. Also, it is airborne camera designed for capturing the landscapes of the satellite, at that time almost unknown scientifically. The weight of the unit is 350 pounds. Association with Cassini was held in order for the joint mission, because the mission of these two objects are close to each other.

Flight

On 15 October in 1997 with the launch of the station "Cassini" and attached to the apparatus "Huygens" to study Saturn. To send the station into space, used specialized booster called "the Titan 4B". In addition to this, it was necessary to use an additional unit contributed to the acceleration of the object, which was called "centaur".distance to Saturn Once the device was supposed to arrive on Venus. This was a number of numerous causes, because, as they say astronauts in the galaxy there are no direct roads. To accelerate the unit helped gravitational fields of the three planets. In order not to waste resources, during the flight to the destination, the station used only a few percent of its potential.

First images

Arrived at the Cassini Huygens in the winter of 2000. It was then that he sent to Earth the first images of Saturn in the first lunar quarter, it is a kind previously unseen by humans. The researchers also took photos of the satellite Phoebe, which is no less than a planet-giant, interested scientists. It was a real sensation, for the first time people were able to clearly see the space object.

The Satellite Phoebe

Through photographs failed to consider that Phoebus is very similar in appearance to an asteroid the size of two hundred kilometers and that he had the wrong form. In addition, the researchers found out that more it is made of ice and has a structure of the comet. These data were closer to understanding the mysteries of the Saturn system.

Sunlight on the icy rings of Saturn

Far in the distance to Saturn, Cassini went into orbit of the planet. It happened in mid-summer 2004. Along the way he faced only two obstacles, but it has not caused significant damage. Before landing on the planet, he made 74 of revolution around Saturn, it took him about four years. But during this time he studied the surface of the giant and its satellites. It is worth noting that the station is flying around Titan 45 times.

Main goals

"Huygens", Cassini was sent to Saturn to study the planet, namely:

  • Define structure and determine the behaviour of the planet's rings.
  • To Know the geological structure and history of the satellites of Saturn.
  • To Learn the nature and origin of dark matter on one of the hemispheres of the satellite yapet.
  • To Explore the structure and behavior of the magnetosphere.
  • To Explore the structureclouds and learn how the atmosphere behaves.
  • To Learn more about fog and cloud cover on Titan.
  • Determine the nature of Titan's surface.

Mission

"Huygens", Cassini was equipped with a spectrometer to the world could get compiled by the staff of the map of the planet. Also established a system of imaging Radar. It was conducted measurement of height of objects on the planet and the satellites. Radar operates using radio signals, which reflects the satellite. In addition, he listened to the radio, which produces the planet. Also in the equipment includes: the mass spectrometer of neutral particles and ions, plasma, and radio waves, magnetospheric camera, ultraviolet and infrared spectrometer, a magnetometer, an RF subsystem and a nuclear generator.

Chronicle of flight

  • 1997 – departure from Earth.
  • 1998 – the first maneuver on Venus and the creation of many beautiful and memorable images of the planet.
  • 2000 – flying past the asteroid Masursky thanks managed to find out what its diameter is about 20 kilometers, which greatly influenced further studies.
  • 2000 – in December he flew past Jupiter, having many colour pictures, and after spending a number of important studies.
  • 2001 – detection of haze on the way from Jupiter to Saturn, it is the first signs of it in the constellation of the Pleiades.
  • 2004 – flying past the Titan, and detection of cryovolcano end of it nitrogen ice, which became a sensation in the world of space research.
  • 2004 – on the night of December 25, there was a separation of the probe "Cassini".
  • 2005-Cassini has successfully sat on Titan and started to perform his part of the mission.

Mission

With this machine, scientists were able to conduct the experiment to test General relativity. At this point, the researchers observed a frequency shift and signal delay. In 2005 failed to examine the spokes of Saturn, but it did not help to understand the mechanism of their creation. It is believed that the following spokes was supposed to appear in 2007. In addition, the device is allowed to detect new satellites of the planet Meton, Pahlen and Politicis. And in may in the gap Keeler discovered another satellite, called Daphnis, this is the second satellite, whose orbit is located inside the planet's rings.Cassini Saturn there was water ice on the surface of the Phoebes. The scientists also found on the Northern hemisphere of Titan's liquid hydrocarbon lakes. It is worth noting that this is the first time scientists have found water bodies outside of the Earth. Thanks to the probe "Cassini" became known that their size varies from one to hundreds of kilometers. In 2007, it was announced that the Northern part of Titan discovered a large cluster of seas. The year before, scientists have learned about another mystery, which contains Saturn, "Cassini" found in the atmospheric structure, which is a hexagonal storm in 25 thousand kilometers.

Extending the mission

Deciding what will happen to the device after it finishes its mission, scientists have developed several scenarios for station of the "Huygens-Cassini". The priority and the desired option proposed by the developers, was the withdrawal of apparatus on the elongated orbit of Saturn. Its advantage is the fact that the station would continue to fly around the planet, however, she would not have collided with her satellites or other obstacles that could affect its integrity.probe Cassini

The Second option proposed by the staff of the research center, was the conclusion of the station in the atmosphere of Saturn. But there is one problem, to do this, would have to lead him through the rings of the planet. In this case, the probability of loss of control over the device, and accordingly, the unknown, what is the fate of Saturn by Cassini.cassini huygens

It was Also proposed to use the station to study other cosmic objects in the Kuyper belt, including Uranus and Neptune. With the stock fuel and tool set station is quite coped with the task and helped to learn more about little known parts of our solar system.automatic interplanetary station

Another use case of automatic interplanetary station was to introduce him to the path of collision with the mercury. Scientists have calculated that it is possible, if you use the gravitational field of Jupiter. Then he will fly to the planet with a speed of 20 kilometers per hour and without harm to themselves will face with unknown object. Under the plans, around 2021 people would be able to learn more about mercury, its structure, structure and composition.orbit

But in 2007, it was unanimously decided that the station remained in orbit around Saturn. The observation of the planet is still ongoing, the satellite continuously transmits the images of this amazing giant on the Earth, unveiling new secrets of the distant and not yet understood fully of Saturn, the distance to which we could overcome with the development of well-known scientists and desire to know the cosmos. Of course, we spent a lot of money, time and effort, but with full confidence we can say that it was worth it. Because the more we learn about the world around us, the better we can understand ourselves. Space exploration annually develop, and, who knows, maybe the next mission onSaturn will perform non-functional automatic station, and a group of qualified astronauts. In any case, the unit made orbit and revealed not only useful information but also unique images of this distant and beautiful world.


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ZH: https://tostpost.com/zh/education/7094-huygens-cassini---automatic-interplanetary-station-the-study-of-saturn.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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