How many kilometers is the spaceship from Earth?
Different spaceships were different kilometers away from Earth. For example, Voyager 1 was about 23.3 - 23.9 billion kilometers away from Earth; the Arctic Dawn spacecraft was 1400.7 kilometers away from Earth; the Cassini spacecraft was about 1.4 billion kilometers away from Earth; and New Vision was 4.8 billion kilometers away from Earth as of September 2019. The novel " Hundred Years of Spaceship " is equally exciting. Everyone is welcome to click and read it!
The diameter of the earth is 12,800 kilometers
The average diameter of the Earth was about 12,742 kilometers, the diameter of the Earth's equator was about 12,756 kilometers, and the diameter between the North and South Poles was about 12,631 kilometers. Therefore, saying that the diameter of the Earth was about 12,800 kilometers was an approximate statement.
100 kilometers out of Earth?
100 kilometers away from Earth. The Earth's atmosphere extended upward to a height of more than 1600 kilometers. The Earth's atmosphere was generally divided into four main regions, from bottom to top, namely the troposphere, stratosphere, ionosphere, and outer atmosphere. The thermosphere ranged from 80km to about 500km, and 100 km was in the thermosphere of the Earth's atmosphere, which had not yet left the Earth. The novel "Hundred Years of Spaceship" is equally exciting. Everyone is welcome to click and read it!
How many kilometers is the spaceship from the ground?
Different spaceships had different distances from the ground. For example, Shenzhou 19 was about 400 kilometers above the ground in orbit; The Arctic Dawn spacecraft was 1400.7 kilometers above the Earth in orbit; Shenzhou 14 was about 140 kilometers above the ground after the propulsion module was abandoned after completing its mission; Shenzhou 18 separated from the propulsion module when it was about 145 kilometers above the ground; Shenzhou 17 re-entered the atmosphere about 100 kilometers above the ground and ignited the reverse thrust engine when it was 1 meter above the ground. The novel " Hundred Years of Spaceship " is equally exciting. Everyone is welcome to click and read it!
400 kilometers in space to see the earth
Looking at Earth from 400 kilometers away, one could see many unique sights. For example, in the video taken by the Shenzhou 12 astronauts in orbit, they could see Beijing, Tianjin, Jiaodong Peninsula, Bohai Bay, the Yellow River Evacuation, the Yangtze River Evacuation, the Pacific Ocean, and many other places. They could even clearly see typhoon "fireworks". And from 400 kilometers away, astronauts could see 15 - 16 sunrise and sunsets a day. The Tiangong space station was located about 400 kilometers away from Earth. It orbited the Earth at a speed of 7.68 kilometers per second, and it circled the Earth once every one and a half hours. The average temperature 400 kilometers in space reached-270.3 degrees Celsius, close to absolute zero, in stark contrast to the warm and suitable temperature on Earth. The novel " Hundred Years of Spaceship " is equally exciting. Everyone is welcome to click and read it!
How many kilometers per hour is the speed of the spaceship?
The speed of the spaceship varied according to the type of spaceship, mission requirements, and other factors. For example, the speed of a spacecraft orbiting the Earth was generally between 7.9 - 11.2km/s; the speed of a spacecraft flying to the Moon, Mars, or other planets in the solar system was between 11.2km/s - 16.7km/s; the speed of a spacecraft flying out of the solar system was greater than 16.7km/s; the United States 'Juno Jupiter probe could reach a speed of 73.6km/s, which was the current maximum speed of human travel in space. The novel "Hundred Years of Spaceship" is equally exciting. Everyone is welcome to click and read it!
How many kilometers are there in a circle of the earth?
The circumference of the Earth was about 40076 kilometers. This number was mentioned in many documents. The Earth's equator radius was about 6378.137 kilometers, the polar radius was about 6356.752 kilometers, and the average radius was about 6371 kilometers. These data supported the conclusion that the Earth's circumference was about 40076 kilometers. Therefore, it could be determined that the circumference of the Earth was 40076 kilometers.
How many kilometers is the diameter of the earth?
The diameter of the Earth was about 12742 kilometers. However, the Earth was an irregular oval with a slightly flat pole and a slightly bulging equator. Its equator had a diameter of about 12756 kilometers, and the diameter between the North and South Poles was about 12631 kilometers.
How many kilometers does the spaceship reach the speed of light?
The precise value of the speed of light was 299,792.458 km/s. If the spaceship reached the speed of light, its speed would be 299,792.458 km/s. According to Einstein's theory of relativity, objects with mass could not reach the speed of light, because as the speed of the object approached the speed of light, the energy required would tend to be infinite. The novel "Hundred Years of Spaceship" is equally exciting. Everyone is welcome to click and read it!
How many kilometers is one circle of the earth?
The length of one circle of the Earth was about 40,075 kilometers. This number was based on the measurement of the Earth's equator circumference, reflecting the Earth's approximate circle. Many documents mentioned this value. Therefore, it could be determined that the length of one circle of the Earth was 40,075 kilometers.
The sun is 150 million kilometers away from the earth
The average distance between the sun and the earth was about 150 million kilometers. This number was mentioned in many documents. For example, documents [2] and [6] clearly state that the average distance between the Sun and the Earth is 150 million kilometers. In addition, documents [3] and [8] also mentioned the same number. Therefore, it could be determined that the average distance between the sun and the earth was 150 million kilometers.