Shenzhou 13 astronauts successfully returned to the ground, and the Chinese space station was in an "unattended" state, but the Tianhe core module and Tianzhou 3 continued to skim over several areas at a speed of 7.8 kilometers per second, including the vast Pacific, Atlantic and Indian Oceans.
After 23 years of stable operation of the International Space Station, mankind ushered in a new Chinese space station, the world is still very optimistic, there have been many countries actively joined the Chinese space station project, their astronauts will enter the Chinese space station in the next few years, foreign astronauts bluntly said: stationed in the Chinese space station is a kind of enjoyment.
Whenever night falls and before dawn, the Chinese space station reflecting strong sunlight has become the brightest landscape in the night sky, the main object of observation for sky observers, the Chinese space station is visible to the naked eye, even if there is no professional observation equipment, the naked eye can clearly see the Chinese space station that crosses the line.
No, when the Roman astrologer took the 4-star moon planet, he also took the exposure photo of the "four stars with the moon" in the same frame when the Chinese space station crossed, and the photo of the exposure of 15 minutes came.
The Chinese space station is accompanied by four stars in the same frame as the moon, and passes through the middle of the four stars
At dawn on April 27, 2022, local time in Italy, there were 4 stars in the night sky accompanied by a moon, and 4 bright stars accompanied by a bright moon, which is a sharp crescent moon that looks like a sickle, but this does not affect the magnificent landscape of the 4 stars with the moon.
These 4 bright stars are Jupiter, Venus, Mars and Saturn, they are the brightest stars in the night sky, Jupiter is the largest planet among the 8 planets, Saturn is the second largest planet among the eight planets, Venus and Mars are the closest planets to Earth, they are known as Earth's "sister planets".
At this moment, the much-watched Chinese space station crossed over Italy and swept through the middle of the four-star moon, so there was an extraordinary landscape of the Chinese space station with a frame of four stars and a moon, and an astrologer in Rome, Italy, deliberately took an exposure photo of up to 15 minutes.
According to the photos, Jupiter, Venus, Mars and Saturn line up on the southeast horizon, and below it is a sickle-shaped crescent moon, and the Chinese space stands on the night sky leaving a long trail (the reason for the photo exposure) and finally passing diagonally through the middle of the four side-by-side planets.
This is not the end, then, Roman astrologers captured the exposure of the International Space Station with the frame of the four stars with the moon, because he knew that the International Space Station is coming soon, although the International Space Station looks brighter than the Chinese space station, but the Distance between the International Space Station and the four stars with the moon is far away, and it does not cross through the middle of the four stars.
What happened to the "unattended" Chinese space station?
The Core Capsule of the Chinese space station is orbited in an orbit of 400 to 500 kilometers, with a speed of 7.8 kilometers per second, the diameter of the Earth's equator is 12,742 kilometers, the circumference is about 42,522 kilometers, and it takes about 90 minutes for the space station to circle the earth, so it will transit the Pacific Ocean every 90 minutes.
After the Shenzhou 13 astronauts returned, the Chinese space station entered an "unattended" state, what happened to the Tianhe core module? According to the bloods above website, the Chinese space station continues to fly around the ground, but there has been a slight change, the orbital altitude has become lower, and there should be a maneuver to increase the orbital altitude in the near future.
The normal orbital height of the Chinese space station is 400 to 450 kilometers from the ground, which is similar to the orbital height of the International Space Station, but the healths above website data shows that the orbital height of the Chinese space station has become lower, running in a low-Earth orbit of 378x395 kilometers, with an orbital inclination of 41.5°.
378 km is the perigee height, 395 km apogee height, 41.5 ° is the angle between the space station and the Earth's equator, 41.5 ° inclination, which also allows the Chinese space station to cross just above Italy, which has the Chinese space station with the frame of the four stars with the moon exposure photo.
Don't worry, the orbital altitude of 378x395 kilometers, although a little low, still belongs to the normal range, the Chinese space station can be maneuvered to enhance the orbit, the International Space Station is the same, through regular maneuvering operations to control the orbital altitude, a few days ago, the Russian module on the International Space Station came to an upgraded maneuver.
At last
The "unattended" Chinese space station will not exist for too long, the Shenzhou 14 spacecraft is ready, the Shenzhou 14 astronauts have been selected and are expected to be launched in early June, the Shenzhou 13 astronauts returned in mid-April, and the Chinese space station "idle" time is only more than two months.
Now, the most important space mission is to launch the Tianzhou 4 cargo spacecraft in early and mid-May, after shenzhou 14 entered the Chinese space station, it needs food and living materials, and the tianzhou 4 cargo spacecraft is to send these materials to the Chinese space station in advance, and it is impossible for astronauts to work hungry.
Finally, another sentence: the exposure photo of the Chinese space station with four stars and the moon in the same frame is really magnificent, if you like it, you have to collect the photos. Interesting and informative scientific content, please pay attention to the only WeChat public account: Interesting Exploration