How many hours does the God 7 fly in total 10

The total flight time is 4 days, 20 hours and 28 minutes.

Shenzhou 7 was launched.

Background information: Shenzhou 7 was launched at 21:10 on September 25.

September 27, 2008 16:48-16:59, the first Chinese spacewalk.

At 19:24 on September 27, 2008, a companion satellite was released.

Successful landing at 17:36 on September 28, 2008.

2.What it means to be successful.

1.In the field of aerospace, Shenzhou 7 lifted off with three astronauts for the first time, and during orbital operation, one astronaut walked out of the capsule and released a small satellite to accompany the flight.

In the true sense of the word, China has left the footprints of the Chinese nation in space, and has also laid a solid foundation and a good start for the follow-up manned space flight project and the subsequent lunar exploration project and far-earth outer space exploration.

2.In the field of national defense, it indicates that China has initially possessed the ability to conduct space defense warfare.

3.In the field of diplomacy, the successful launch of Shen-7 and the successful completion of the out-of-cabin activities have further enhanced China's international status and enhanced China's influence in the world.

3.Aerospace events in China and internationally.

On April 12, 1961, Gagarin, the first cosmonaut of the former Soviet Union, went into space aboard the Vostok spacecraft, becoming the first person in the world to enter space and see the whole picture of the earth from the universe.

On March 18, 1965, Soviet cosmonaut Alexei Leonov stepped out of the "Ascent" 2 spacecraft, thus successfully achieving the first human out-of-space activity.

June 3, 1965 15:15:59 Astronaut Edward White performed the first spacewalk in the history of American astronautics (and the second in human history).

In 2008. Shenzhou-7 was launched on September 25, 2008 and entered the scheduled orbit. On September 27, 2008, the first Chinese spacewalk was completed. On September 28, 2008, the re-entry capsule entered the re-entry procedure, and the re-entry capsule landed safely in the predetermined area of Inner Mongolia to complete the manned space flight mission. The Shenzhou-7 manned space flight achieved astronauts.

Out-of-cabin activities and small satellite accompaniment.

A number of technical trials have been successfully completed, opening a new chapter in China.

Flight planning. 1. State or Shenzhou spacecraft.

It will be from the Jiuquan Satellite Launch Center in China.

The manned cosmodrome was launched and operated in a near-circular orbit at an altitude of about 343 km.

2. During the operation of the spacecraft, 2 astronauts entered the orbital module and wore the "Feitian" extravehicular spacesuit developed by China and the "Sea Hawk" extravehicular spacesuit imported from Russia to prepare for the out-of-cabin activities.

3. After the out-of-cabin activity is completed, the spacecraft will release a companion satellite; At the same time, the "Tianlian-1" satellite data relay test was carried out.

4. Shenzhou 7 spacecraft.

After completing the scheduled wildfire flight mission, Song Jixu will return to the central region of Inner Mongolia.

The main landing field.

At about 6 p.m., three astronauts arrived at the launch site. After confirming the technical status, the astronauts entered the Shen-7 return capsule one after another.

About 18:35: Zhai Zhigang tried to operate with his baton.

At about 21:09: The launch of Shenzhou 7 entered 1 minute of preparation, and the pendulum rods were all opened.

About 21:09: Rocket ignition.

21:10: The Shenzhou-7 spacecraft lifts off.

In the 120th second of ignition, the rocket threw away the escape tower and booster.

In the 159th second of ignition, the first and second stages of the rocket were successfully separated.

At the 200th second of ignition, the fairing separated.

At the 500th second of ignition, the second-stage rocket was shut down.

At the 583rd second of ignition, the spacecraft and the rocket were successfully separated, and the star and arrow separated at about 21:22: The astronaut reported: Sun sail, feeling good.

At about 21:30: Beijing Aerospace Flight Control Center announced: The spacecraft is in orbit normally.

At about 21:32: The commander-in-chief of the manned space project announced that the Shenzhou 7 spacecraft was successfully launched.

22:07: The first in-orbit and out-of-orbit activities after the launch of Shen-7 Space environment forecast: The space environment is calm and safe for the spacecraft's in-orbit operation.

The flight speed of the Divine Seven is below the score.

The first cosmic speed is the speed at which you can go to the sky, and without this speed, you can't go up.

When you go up and do an orbital motion, because the gravitational force there is less than the ground, you don't need that much speed to maintain the orbit, so in the case of orbiting, it should be less. The orbit of the spacecraft will be offset, but if it is less than the second cosmic velocity, it will still orbit the Earth, but the orbit of the rotation will change with the speed. Only if it is exceeded, the spaceship will no longer orbit the auspicious and will break away from the earth.

But to get to the Moon, considering the Moon's gravitational pull, the speed would be 10 848 km/s.

From the TV**, we learned that Shenzhou 7 circles the earth every 90 minutes.

At about 4 o'clock in the morning of the 26th, the Shenzhou-7 spacecraft successfully changed its orbit, from the elliptical orbit when it entered the orbit into a near-circular orbit about 343 kilometers above the earth's surface. The equatorial radius of the earth is 6378km, the polar radius is 6357km, the average radius is 6371km, the average radius is 6371km, plus the flight altitude of Shenzhou 7 is 343 km, it can be concluded that the flight trajectory of Shenzhou 7 is a very approximately circular orbit, its radius is 6371 + 343 = 6714km, and the distance of its flight is 42185 km.

If you already know the time (90 minutes = hours) and the distance (42185 kilometers), then the speed of Shenzhou 7 is 42185 kilometers per hour = kilometers and seconds.

59 kilometers per second while orbiting the Earth.

It was 78 kilometers per second when it returned to Earth.

24 Sep -- The General Headquarters of the Shenzhou-7 manned space mission held a press conference this afternoon at the Jiuquan Satellite Launch Center in China on the implementation of the "Shenzhou-7" mission. A crew of three astronauts flew the mission. According to the plan, "Shenzhou-7" will be launched from the launch site of the Jiuquan Launch Center and operate in a near-circular orbit at an altitude of about 343 kilometers.

68 hours and 45 revolutions can be calculated by taking the Earth's orbit.