What does Shenzhou 7 companion mean? What is the difference between a satellite and a companion s

Shen VII" mission to release a companion small satellite. After the "Shen 5" and "Shen VI" were launched into orbit, they could not shoot the exterior of the spacecraft in space**, and the live TV broadcast at that time was limited to the cabin. After the release of the "Shen VII" companion satellite, it will be able to make up for this shortcoming.

According to experts, small satellites can be orbited at close range and fly together, because small satellites are equipped with CCD stereo cameras, which can provide the first three-dimensional stereoscopic exterior view of the spacecraft when flying in orbit.

In response to a question about whether there is a potential military intention to release a companion small satellite during the "Shen VII" mission, Gu Yidong, a researcher at the Institute of Optoelectronics of the Chinese Academy of Sciences, responded at the press conference. In the next stage, China will carry out the rendezvous and docking of space vehicles, which is also a key "Shen-7" companion small satellite schematic technology in the manned space project. This small satellite will provide some experience and lay some foundation for rendezvous and docking.

Gu Yidong first said that as a new technology test in the application of Shen-7 manned spaceflight, the test accompanying the flight has been carried out very successfully so far. We believe that accompanying satellites will be a very useful tool in the future manned space project.

Gu Yidong introduced that carrying out the test of accompanying satellites is, on the one hand, to open up a new way for future applications. The accompaniment of small satellites, such as space stations or space laboratories, can extend the capabilities of large vehicles. In addition, the test of the companion satellite can also serve large vehicles, such as space laboratories and space stations, such as observing the appearance and checking possible damage, to serve large vehicles.

Gu Yidong also said that China will carry out the rendezvous and docking of space vehicles in the next stage, which is also a key technology in the manned space project. This small satellite will provide some experience and lay some foundation for rendezvous and docking, including the basic work of commanding, organizing and predicting the orbit control of the two aircraft by the ground system, which is of great reference significance for rendezvous and docking.

In response to the question of whether there is a potential military intention to release a companion satellite during the "Shen VII" mission. Gu Yidong introduced that in the early 90s of the 20th century, Russia's Mir space station cooperated with Germany and also released a companion satellite to inspect and diagnose the Mir space station and conduct orbiting experiments. U.S. space shuttle astronauts once used their hands to release tiny satellites, and at the same time used carrying canisters to release small satellites for scientific experiments.

Japan's lunar exploration satellite has released two companion satellites.

The Shenzhou 7 companion star revolves around the Shenzhou 7 and shoots **.

Satellite refers to a natural celestial body or artificial celestial body orbiting around a planet In a satellite system in which two or more satellites orbit a planet in the same orbit, when the main satellite circles the planet, it carries another secondary satellite with it, and this secondary satellite seems to be a partner of the main satellite, so it is called"Satellite companions".

Satellites revolve around planets; The orbital period of a satellite around a planet is comparatively shorter. The Moon is a satellite of the Earth.

Astronomers used the European Southern Observatory's Very Large Telescope to observe the Water Commission-1 and found that the Water Commission-1 had a companion star. The companion star is an A-type star with a stellar spectrum between A0V and A3V, and a mass that may be twice that of the Sun. The distance between the 1 and the companion star is about astronomical units, and the orbital period is at least 14 to 15 years.

Breakthrough 1: A flight crew of 3 astronauts lifts off.

The three astronauts went into space, indicating that the "Shen VII" has greatly improved its internal space and comfort. A netizen who claimed to be a "NASA professional" claimed: "From my professional point of view, China's new spacecraft has been able to achieve a breakthrough in the free movement of astronauts in the cabin, which not only means that the space has increased, but also shows that the cabin environment technology of the Chinese spacecraft has made a qualitative leap, closer to NASA."

Breakthrough 2: The new spacesuit technology is "comparable to that of the United States".

China** reported in June 2007 that 300 square meters of spacesuit material had been produced. The new material is resistant to fire and radiation. The new spacesuit was not only suitable for spacewalking, but also very comfortable.

This is also a big breakthrough for China's aerospace, because China's spacesuit previously had the "Sea Eagle" imported from Russia, but this spacesuit is relatively bulky, and it is very inconvenient to move in and out of the cabin. At present, the technology of the "Feitian" spacesuit developed by China is "comparable to that of the United States." Of course, such spacesuits are worth a lot of money, and it is said that each set is up to 100 million yuan.

Breakthrough Three: Release the Little Companion.

The United States** said that the astronauts on the "Shen VII" will release small surveillance satellites, that is, "companion satellites". The stereo camera on the "companion" can provide instant footage of the spacecraft and astronauts' spacewalks. However, people in the European military and astronautical circles are not without concern and say that this technology means that China's spacecraft will have the ability to "hunt stars in space," because since Chinese astronauts have the ability to release satellites, they are of course also capable of "captive" satellites from other countries.

Breakthrough 4: The challenge of walking out of the cabin is not trivial.

The "Shen V" astronauts will mainly test the spacecraft, the two astronauts of the "Shen VI" will mainly participate in the spacecraft's in-orbit flight, and the "Shen VII" astronauts will undertake the out-of-cabin walk that no one in China has ever tried before. This is an important step in laying the technological foundation for China's space station. The U.S. aerospace community believes that China's first spacewalk should take no more than an hour.

Breakthrough 5: The spacecraft's underwater experiments have made the outside world curious.

After revealing that the spacecraft was training in a pool filled with water, there was speculation about what it was for.

Breakthrough 6: The new performance of the launch vehicle is amazing.

Compared with the rocket that launched the Shen-6, the Long March-2F rocket has a total of 36 technical improvements, which further improve reliability and safety.

Well, yes, the volume of the star is about one-third of the size of the star, and the two stars revolve around the center of mass of both.

No, Pluto has a companion star called, Charon, also known as Charon.

Charon can be seen as a moon of Pluto, or it can be considered that Pluto and Charon are binary star systems.

Because their center of mass falls outside these two celestial bodies.

Question: What is the principle by which the small satellite revolves around the Divine Seven? Shen Qi did not disperse hunger and gravitational force.

Jiang Weixing: There may be a misunderstanding, rushing back to our small satellite, closing the hatch to release the small satellite, after the release, the small satellite design orbit is about 20 kilometers away from the spacecraft, accompanied by the spacecraft to fly. It should be said that the question raised by this friend Seehong just now is a bit problematic, it is not orbiting, it has its own orbit, it is all satellites, and it is attracted according to the gravitational pull of the earth.