Mooneye Venus Mooneye Venus is a rare astronomical wonder in a thousand years, which appeared on the afternoon of May 21, 20042004, and was very beautiful, but the shooting effect was not very good at that time.

Introduction to Venus One of the eight planets, known in ancient China as Taibai or Taibai. It is sometimes the morning star, which appears in the eastern sky before dawn and is called

Sometimes it is a twilight star, which appears in the western sky after dusk and is called

"Chang Gung". Venus is the brightest star in the whole day after the Sun and Moon, like a dazzling diamond, so the ancient Greeks called it Aphrodite - the goddess of love and beauty, and the Romans called it Venus - the goddess of beauty.

Veiled neighbors - Venus before and after dawn, a particularly bright one is sometimes seen on the eastern horizon

"Morning Star", people call it

"Morning Star", and at dusk, a very bright one sometimes appears in the western afterglow

"Evening star", people call it

"Chang Gung Star". These two stars are actually one, Venus. Venus is one of the eight planets in the solar system, and the second planet in descending order from closest to farthest from the Sun.

It is the closest planet to Earth. Venus, as it is called in Chinese folklore

"Too white" or

"Too Platinum Star". In ancient mythology,

"Tai Bai Xing" is a celestial god. The ancient Greeks called Venus

"Aphrodite" is the goddess of love and beauty. And the Romans called this goddess

"Venus", so Venus is also called Venus. Aside from the Sun and Moon, Venus is the brightest star of the day, at its maximum brightness of -4.4 magnitude, 14 times brighter than the famous Sirius (the brightest star of the day except the Sun).

Venus does not have moons, so the night sky on Venus does not

"Moon", the brightest

The "star" is the Earth. Due to its relative proximity to the Sun, the size of the Sun when viewed from Venus is 1.5 times larger than that seen from Earth.

Some people say that Venus is the twin sister of the Earth, and it is true that, structurally, Venus and the Earth have a lot of similarities.

Venus has a radius of about 6,073 kilometers, only 300 kilometers smaller than the Earth's radius, 0.88 times the volume of the Earth, and a mass of 4/5 of the Earth.

But the environment is very different: Venus's surface temperature is very high, liquid water is absent, and with the brutal natural conditions such as extremely high atmospheric pressure and severe hypoxia, it is impossible for Venus to have any life.

Therefore, Venus and Earth are just a couple

A sister who is "incompatible". In the atmosphere of Venus, carbon dioxide is the most abundant, accounting for more than 97%. There is also a thick cloud of concentrated sulphuric acid up to 20 to 30 km thick.

The surface temperature of Venus is as high as 465 to 485 degrees, and the atmospheric pressure is about 90 times that of Earth. Venus's rotation is very special, it rotates in the opposite direction to the other planets, from west to east.

Therefore, as seen from Venus, the Sun rises in the west and sets in the east. It takes 243 days to rotate around in one week, but a day and night on Venus are particularly long, equivalent to 117 days on Earth, which is to say on Venus

"One year" only

"Two days", which can only be seen twice a year

"Sunrise". Venus's orbit around the Sun is a very close to a perfectly circular ellipse, with an orbital speed of about 35 kilometers per second and an orbital period of about 224.70 days.

The orbit of Venus is very close to a perfect circle and coincides with the ecliptic plane. Its orbital period is about 224.7 days, but its rotation period is 243 days, that is, Venus's

"One day" than

"A year" is still a long time. Venus is the only large planet in the solar system that rotates retrograde. In addition, like Mercury, it is the only two large planets in the solar system that do not have a natural satellite.

Venus is surrounded by a dense atmosphere and clouds. These clouds cast a veil of mystery over the surface of Venus.

Only with the help of radio telescopes can we see through this layer of the atmosphere and see the surface of Venus as it is.

1. A brief overview of the moon is also known as the moon

"Moon". Before the invention of telescopes, people in ancient times could only look up at the bright moon with their eyes on a clear night.

Seeing that the surface of the moon is bright and dark, and the shape is peculiar, people make up beautiful myths such as Chang'e running to the moon, Wu Gang cutting Gui, and jade free medicine.

The ancient Greeks regarded the moon as Artemis, the beautiful goddess of hunting, and used the silver bow that never left the goddess when hunting as the astronomical symbol of the moon.

There is basically no water on the Moon, so there is no weathering, oxidation and water corrosion processes on Earth, and there is no sound transmission, and there is a silent world everywhere.

The moon itself does not emit light, the sky is forever pitch black, and the sun and stars can appear at the same time. There is almost no atmosphere on the Moon, so there is a large temperature difference between day and night on the Moon.

During the day, the temperature can reach as high as 127.25°C where the sun shines vertically, and at night the temperature can be as low as -183.75°C.

Because there is no atmosphere, the intensity of sunlight on the surface of the moon is about 1/3 stronger than that on the earth, and the intensity of ultraviolet rays is much stronger than that of the earth's surface.

Because the moon has little atmosphere, many strange phenomena will be seen on the surface of the moon, such as the sky on the moon is dark black, the sunlight is straight, and the place where the sun shines is very bright, and the place where it does not shine is very dark.

That's why you can see the surface of the moon in both light and dark. Since there is no air to scatter light, the stars on the moon also appear to stop twinkling.

The lunar surface is full of exposed rocks and silhouettes of craters. The entire lunar surface is covered with a layer of gravel grains and floating soil.

The surface of the Moon as seen from Earth has bright areas and dark gray parts. It turns out that the bright part is the mountains and highlands of the lunar surface, and the dark gray part is the plains of the lunar surface.

The Moon is smaller than the Earth, with a diameter of 3,476 kilometers, which is approximately 3/11 of the Earth's diameter.

The surface area of the Moon is about 1/14 of the Earth's surface area, which is slightly smaller than that of Asia, and its volume is 1/49 of the Earth's, in other words, the Earth can hold 49 moons.

The mass of the Moon is 1/81 of that of the Earth, and the average density of matter is 3.34 grams per cubic centimeter, which is only 3/5 of the density of the Earth.

The gravitational pull on the Moon is only 1/6 of that of the Earth, which means that something weighing 6 kg weighs only 1 kg on the Moon.

When a person walks on the moon, his body appears to be very relaxed, and he can jump up with a little effort, and astronauts think that walking on the moon with half jumping and running seems to be more enjoyable than walking on the earth.

The Moon is the closest celestial body to the Earth, and it is the only natural satellite orbiting the Earth, with an average distance of about 384,400 kilometers from the Earth.

The Moon's orbit around the Earth is a circular orbit with an average distance of 363,300 km at the perigee (when it is closest to the Earth) and 405,500 km at the apogee (when it is farthest from the Earth), a difference of 42,200 km.

Like the Earth, the Moon is a slightly flattened ball at the north and south poles and slightly uplifted at the equator. Its average polar radius is 500 meters shorter than the equatorial radius, and the north and south poles are also asymmetrical, with the Arctic region uplifted and the Antarctic region depression about 400 meters.

In the process of the moon's orbit around the earth, it also moves around the sun with the earth. This means that after a week of the Moon's orbit around the Earth, it will return to a position in space that is no longer the original starting point.

It can be seen that the Moon also participates in the movement of multiple systems in the process of motion. The motion of the Moon, like other celestial bodies, is in eternal motion.

In addition to rising in the east and setting in the west, the Moon also moves from west to east on average by more than 13° per day relative to the star, so the Moon rises about 50 minutes later than the day before.

The rise and setting of the Moon in the east is a reflection of the Earth's rotation, while the movement from west to east is the result of the Moon's revolution around the Earth.

The moon revolves around the earth and is called one

The "sidereal month" averages 27 days, 7 hours, 43 minutes and 11 seconds. As the moon revolves around the earth, it rotates itself.

The rotation period of the moon is equal to the revolution period, that is, 1:1, and the time it takes for the moon to orbit the earth is also the period of its rotation.

The result of the strange rotation of the moon is that the moon always faces the same half of the earth, and the far side of the moon can never be seen from the earth, and only by probes can the mystery of the moon's back be uncovered, and this wish of mankind has been realized more than 30 years ago.

Today's large astronomical telescopes can resolve targets about 50 meters (equivalent to a 14-story building) on the moon's surface.