Which is older Earth or Moon? What is the radius of the Moon?

Of course, the Earth is bigger, and the radius of the Moon is twice the radius of the Earth, that is, about 1,740 kilometers.

According to scientists, it is the moon that is older, don't talk nonsense upstairs.

The radius of the Moon is times the radius of the Earth, that is, about 1,740 kilometers.

The earth is big. The radius of the Moon is 1740 km.

The Moon is the same age as the Earth, and it's 4.6 billion.

The radius is 4630

The Moon, commonly known as the Moon and also known as the Taiyin, is the only natural satellite of the Earth and the closest celestial body to the Earth. The Moon is located on average 384,401 kilometers from Earth. This distance is about 10 times the circumference of the Earth's equator.

The Moon's orbit is elliptical, with an average perigee distance of 363,300 km and an average apogee distance of 405,500 km.

1. The basic parameters of the Moon:

Mean equatorial radius: ae = 1,738,000 meters.

Average radius: a = 1,737,400 meters.

Equatorial gravitational acceleration: ge = meters in seconds2

Average rotation period: t = days.

Flattening ratio: f =

Mass: m = 1024 kg.

Lunar gravitational constant: gm = m3 seconds2

Average density: e = g cm3

Earth-Moon mass ratio e m =

Average distance from Earth: r = 384400 km.

Escape velocity: v = kilometers in seconds.

Surface temperature: t = -120 150

Surface atmospheric pressure: p = 1 Second, the circle structure.

The Moon is the only natural satellite of the Earth, and it has a close evolutionary connection with the Earth. Based on the analysis of the Apollo 11 and 12 lunar seismological observators built on the moon, as well as the study of the lunar surface and lunar rocks, it is known that the current lunar interior also has a sphere structure, but it is not exactly the same as the inner sphere structure of the earth. The surface of the moon has a layer of lunar soil that is several meters to tens of meters thick.

The entire Moon can be considered to consist of the lunar lithosphere (0 1000 km), the asthenosphere (1000 1600 km) and the lunar core (1600 1738 km). The lunar lithosphere can be further divided into four layers, namely the lunar crust (0 60 km), the upper mantle (60 300 km), the middle mantle (300 800 km) and the lunar seismic zone (800 1000 km). The asthenosphere is also known as the lower mantle.

At depths of 10 km, 25 km and 60 km of the lunar crust, there are sharp changes in the velocity of lunar seismic waves, indicating significant discontinuities at these depths. The surface of the moon to a depth of 25 km is the first layer of the lunar crust composed of basalt, and the second layer of the lunar crust between 25 km and 60 km, composed of gabbro and pyrorite. The upper mantle is composed of magnesium-rich olivine, and the middle and lower mantle are composed of mafic rocks.

The location of the lunar hypocenter is located between the depths of 600 1000 km, and the average lunar source depth is 800 km. Since the density of the rocks on the surface of the Moon is not much less than the average density of the entire Moon, it can be assumed that the core of the Moon will not be composed of heavier elements such as iron and nickel, and it may be plastic or partially molten. At a depth of 1,000 km on the Moon, the temperature of the lunar mantle will not be higher than 1,000 ° C.

Based on what is known about the inner state of the Moon, the solid partial sphere structure is not unique to the Earth itself. The above-mentioned sphere structure of the Moon is also the result of the differentiation of the entire lunar material sphere during the evolution of the Moon.

3 10-10 Pa.

The Mystery of the Moon's Age: Rock specimens brought back from the Moon can be used to determine the Moon's age. The analysis found that the moon rocks99 were older than the 90% of the oldest rocks on Earth.

In 1973, the World Lunar Symposium determined that a lunar rock was 5.3 billion years old, and the oldest rock on Earth was 3.7 billion years old. Some scientists have proposed that the Moon formed in interstellar space long before the formation of the Earth.

The Moon is smaller than the Earth, with a diameter of 3,476 km, which is approximately equal to 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; Its volume is 1 49 times that of the Earth, in other words, the Earth can hold 49 moons. The mass of the Moon is 1 81 of the Earth;The average density of matter is 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 on the Earth, that is, 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 seems to be more enjoyable than walking on the earth.

The diameter of the Moon is about that of the Earth (3), the mass is about that of the Earth (1), the volume is about that of the Earth (4), and the gravitational force is about that of the Earth (2).

The diameter of the Moon is about 1 4 times that of the Earth, specifically,The diameter of the Moon is about 3,474 km, while the diameter of the Earth is about 12,742 km. Although the diameter of the Moon is only about 1 4 of the Earth, its mass is only about 1 81 of the Earth, therefore, the density of the Moon is much smaller than that of the Earth.

Expansion:

The Moon is one of the largest moons in the solar system, it is the only satellite of the Earth and the first goal of human exploration of space. The surface of the Moon is home to many craters, mountains, and volcanoes, which are formed by natural forces such as celestial impacts, crustal movements, and volcanic eruptions. In addition, there are many interesting phenomena on the moon, such as the far side of the moon is not directly observed by humans, and there are also lunar vibrations on the surface of the moon.

The moon is not only the goal of human space exploration, but also an important base for human space exploration in the future. Because of its low gravity and large amounts of oxides and other chemicals on its surface, the Moon can serve as a vital resource for space exploration and future space bases. In addition, the Moon can also serve as an experimental site for space exploration and scientific research, helping humans better understand the universe and the Earth.

In conclusion, the diameter of the Moon is about 1 4 times that of the Earth, and although its volume and mass are much smaller than that of the Earth, it has an important role and potential for space exploration and future space bases.

The Moon is smaller than the Earth. The Moon is the fifth-largest moon in the solar system, with an average radius of about kilometers, which is equivalent to times the radius of the Earth; The mass is close to kilograms, which is twice that of the Earth.

The origin of the moon is inconclusive, and various theories are inconclusive, the most common being that the moon was formed by material separated from the earth; The moon is formed by debris from the collision of planet-sized objects with the Earth; The Moon is a celestial body captured by the gravitational pull of the Earth.

environment

The Moon is a desolate world without air, water, the vagaries of wind and clouds, and the silence of life. The temperature changes dramatically, reaching 127 during the day and dropping to -183 before dawn. The bright parts of the moon are plateaus, mountains.

The highest peak reaches 9,000 meters. The dark part is the vast plains and depressions, which used to be mistaken for the ocean, so they were named "Jinghu Bridge Selling Sea", "Chenghai", "Storm Ocean" and so on.

The most striking feature of the lunar surface is the craters with a diameter of more than 1 kilometer, and there are 33,000 on the front side of the moon alone. These craters are largely the result of the impact of cosmic objects on the lunar surface and volcanic activity. By measuring the content of radioactive elements and their decay in lunar rocks and lunar dust, it is known that the age of the moon is the same as that of the earth, which is 4.6 billion years.

1. The diameter of the Earth is 4 times the diameter of the Moon, and the mass is 81 times that of the Moon.

2. Earth is one of the eight planets in the solar system, the third planet in order from near to far, and it is also the terrestrial planet with the largest diameter, mass and density in the solar system, 100 million kilometers away from the sun. The Earth rotates from west to east while revolving around the Sun. It has a natural satellite, the Moon, and the two form a celestial system, the Earth-Moon System.

It originated from the primordial solar nebula 4.6 billion years ago.

3. The radius of the earth's equator is kilometers, the polar radius is kilometers, the average radius is about 6,371 kilometers, and the circumference of the equator is about 40,076 kilometers. The surface area of the earth is 100 million square kilometers, of which 71% is oceans and 29% is land.

4. The Moon, commonly known as the Moon, also known as Taiyin and Xuantu in ancient times, is the only natural satellite of the Earth and the fifth largest satellite in the solar system. With a quarter of the diameter and a mass of 1 81 of the Earth, the Moon is the most massive moon relative to the planets it orbits and the second most dense moon in the solar system, after Europa. The diameter of the Moon's equator is 3, km, and the diameter of its poles is 3, km.

It stands to reason that it is the same size. Because it is a fragment of two stars when they collide, they are formed by gravitational condensation.

Scientists have discovered that the Moon is an exotic celestial body, which is much larger than the moons of natural celestial bodies. The diameter of the Earth is 12,756 kilometers, and the diameter of the Moon is 3,467 kilometers, which is 27% of the diameter of the Earth.

Mars has a diameter of 6,787 kilometers and two moons, the larger one is 23 kilometers in diameter, which is 034% of Mars. Jupiter has a diameter of 142,800 kilometers and 13 moons, the largest of which is 5,000 kilometers in diameter, which is 35% of Jupiter's diameter. Saturn has a diameter of 120,000 kilometers and 23 moons, the largest of which is 4,500 kilometers in diameter, which is 375% of Saturn's diameter.

None of the other planets' moons have a diameter of more than 5% of their parent star, but the Moon is 27%, indicating that the Moon is not an ordinary celestial body.

The Moon does not revolve around the Earth, but in reverse with the Earth. Its anomalous axial spin is very fast, much faster than it should be for similar planets. Generally, the orbit of natural satellites is elliptical, while the orbit of the moon is round, and we know that only artificial earth satellites have circular orbits.

The Moon is much less dense compared to planets of the same size. It is foreshadowed that it is different from other planets in that it may be empty inside. The Earth's gravitational pull on the Moon is much smaller than the Sun's gravitational pull on the Moon, but the Moon is not attracted by the Sun and remains in the Earth's orbit.

If the Moon is a natural star in the universe, it will be attracted to Jupiter as soon as it enters the solar system and will not run to the Earth. So, it's hard to imagine that the Moon formed naturally in the universe.

The Earth is a terrestrial planet, and the terrestrial planets have no moons except the Earth. That is, the Moon is not a satellite of the Earth, it is more like an artificial celestial body.

The Earth's equator is kilometers in diameter, the pole is kilometers in diameter, and the average diameter is about 12,742 kilometers.

The diameter of the lunar equator is 3, km; Diameter of the poles 3, km; The average diameter is kilometers.

The average opening angle of the equatorial radius of the Moon when viewed from the Earth is 15 32 6, which shows that the diameter of the Moon is 3,476 km, which is about 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 the area of Asia. The volume of the Moon is only 1 49 of the volume of the Earth.

The mass of the Moon is approximately equal to 1 of the mass of the Earth.

The gravitational pull on the Moon is only 1 6 on Earth