Why do comets look like brooms? Is a comet a broom star

A comet is a very small object orbiting the Sun in a long and flattened orbit, with a unique cloud-like appearance. The main part of the comet is the nucleus, which is generally thought to be made up of icy matter. As the comet approaches the Sun, the icy material in the comet's nucleus sublimates into gas, forming cloud-like coma around it.

The gases and fine dust in the coma, pushed by the solar wind, form a long tail on the side facing away from the sun. The tail of a comet is generally tens of millions of kilometers long, and the longest can be hundreds of millions of kilometers. As the comet moves away from the Sun, its tail gradually shortens until it disappears.

The tail of the comet is shaped like a broom, so the comet is commonly known as the broom star. More than 1,600 comets have been found orbiting the Sun. The famous Halley's Comet orbits the Sun for 76 years.

1985 In 1986, the return of Halley's Comet was observed on Earth.

It rubs against the atmosphere, generates heat, and causes combustion.

The icy matter in the comet's nucleus sublimated into gas, so that a cloud-like comet formed around it and became like a tail dragging behind it, so that it became smaller and smaller.

The comet travels very fast, and in the process of its movement, the material on its surface rubs violently with the gas layer in space, and burns. Since we are far away from the comet, it seems to us that there is a light at its 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.

1. A broom star is a comet!

2. Of course, the ancients could see it, and you can see it without a telescope, it's very easy.

Of course, only if the comet is close to the Earth, close to the Sun.

3. There are many comets, not only one or two, and Envy does not only refer to Halley's Comet!

4. Comets appear very frequently, basically every year. You can search for the most recent comets and look at the sky at regular intervals to see them. Of course, this also needs to be in the suburbs, not in the big cities where light pollution is located.