Is the comet like a witch s broom?

Like a broom. With a long tail.

Dragged a long tail like a broom.

The broom star is also called the broom star, which is the common name for the comet. That is, a broom star is the same thing as a comet. Comets are remnants of material that orbit at the edge of the solar system in the Collapse Hall and are used to make up the solar system, and are normally far from the Sun.

It is a mass of various sizes composed of cosmic dust, water ice, condensed gaseous matter, etc. The big ones are like a big mountain, and the small ones are the size of dust. When they are affected by other celestial bodies, or collide with each other, it is possible to enter the inner solar system, and then be affected by the gravitational pull of the sun, and fly towards the sun.

In the process of approaching the sun, heated by the sun, the gaseous matter and water ice in it melt and evaporate, together with the small solid dust in the shirt, fall off from the large mass, and become a big tail that drags the old hidden behind, like a big broom, so it is called "broom star".

In the solar system, there are many small solid dusts, some of which have fallen off comets. When they are affected by the gravitational pull of the earth and enter the earth's atmosphere, they rub against the atmospheric molecules and burn, emitting light and heat, which is a meteor. Meteors are usually only a few tenths of a gram to a few grams, and they burn up all at once, so when you see them at night, they are just a flash of light.

If the dust particles are larger and it is during the day, you may also see thick smoke. If it doesn't burn up in the atmosphere and falls to the ground, it's a meteorite.

Broom star"The word was originally derived from a comet, because there seems to be a tail behind the comet when it moves, and the shape is like a broom, so it is called a broom star.

In the starry night sky, sometimes, a strangely shaped star appears, which drags a long tail and looks like a broom hanging upside down in the sky. This is what our people call the "broom star". Astronomers call it a "comet".

In Chinese, comet means broom, and calling a comet a broom star really matches the name. In Greek, comet means "hair" because the ancient Greeks thought it was as fluffy as a lock of hair.

A comet is one of the small celestial bodies in the solar system that is made up of frozen material and dust. Generally, comets are composed of two parts: the head and tail of the comet. The coma head includes two parts: the nucleus and the coma.

Later, it was discovered that the existing comet was surrounded by a giant cloud of hydrogen atoms on the outside of the comet, called a "comet" or "hydrogen cloud". In this way, we can say that the comet is actually made up of a comet nucleus, a comet, and a comet.

The nucleus of the comet is the most central, essential, and dominant part of the comet. It is generally believed to be a solid, composed of stones, iron, dust, ammonia, methane, and ice cubes. The diameter of the comet nucleus is very small, ranging from a few thousand meters to more than ten kilometers, and the smallest is only a few hundred meters.

Comets do not have a fixed volume, and when they are far from the Sun, they are very small; As it approaches the Sun, the hair becomes larger and larger, the tail becomes longer, and the volume becomes very large. The length of the comet's tail can reach more than 200 million kilometers.

Comets are mostly made up of frozen material and dust. It can only be seen when it is close to the sun. The sun's heat causes the comet material to evaporate, creating a hazy comet and a thin stream of material around the ice core.

The solar wind blows these comets into a huge tail that shines and the dust reflects the sun's rays, which is why we can often see bright comets streaked across the night sky.

Because it will bring disaster. If a comet hits the Earth, humanity could become extinct, and even if it passes by the Earth, if it is too close, it will cause a chaotic magnetic field and trigger a series of chain reactions.

Because of the stars that pass by the Earth, the ice material in the comet volatilizes, forming a huifa and a huiwei, which is very long, like a broom.

This comet is so famous that it is still known as the "broom star", and every time it appears, the world is turbulent.

Because the passing of this comet has brought a lot of disasters to our earth, and at the same time, it has almost destroyed our earth.

Since ancient times, the occasional comet has been smeared with mystery and horror. Our people call it "Broom Star" and believe that it will bring disaster, hunger and war to the earth. When the famous Halley's Comet appeared in 1066, it was when William, Duke of Normandy, France, led his troops to invade England, and later won in one fell swoop and established the Normandy dynasty.

However, Edmund Halley did not believe in these superstitious legends, and he was the director of the Greenwich Observatory. In 1682, when he was 26 years old, he saw the comet named after him, and he used Newton's method of calculating the orbits of comets to analyze the orbits of 24 comets that had been observed since 1337 and 1698, and found that the three comets of 1531, 1607 and 1682 had striking similarities in the method of appearance, orbit and time interval, and in 1705 he concluded that these comets were repeated occurrences of the same comet, and predicted, The comet would reappear in the sky in 1758 and every 76 years. Later, Halley's prophecy was confirmed, and the comet returned on Christmas Eve 1758, but Harley had died 16 years earlier and had no chance to meet him.

In order to commemorate Halley's exploits, since then, this comet has been officially named "Halley's Comet", which is also the first comet to predict the return date of mankind.

In addition to when comets are far away from the Sun, the comet's long, bright, sparse tail has given people the impression that the comet is very close to the Earth, even within the range of our atmosphere. In 1577 Tycho pointed out that when viewed from different points on the earth, the comets did not appear to be in any different directions: and he was therefore right to conclude that they must be far away.

Whenever a comet approaches the Sun, its brightness increases rapidly. Observations of comets at a considerable distance from the Sun show that they move along a highly elongated ellipse, and that the Sun is at one of the focal points of this ellipse, consistent with Kepler's first law. Comets spend most of their time orbiting at a great distance from the Sun, where they are invisible.

They can only be seen when they are close to the sun. There are about 40 comets with fairly short orbital periods (less than 100 years), so they appear one after the other as the same celestial body.