The sun is a star, will it move? If so, is there a fixed track?

It moves, it rotates, it rotates around the Milky Way, around the core of the Milky Way.

The sun is also constantly rotating and revolving.

In the solar system, the Earth and all the planets revolve around the Sun while rotating. Is the sun, the center of the solar system, also rotating and orbiting? The ancients did not know about this question.

It wasn't until Galileo Galilei invented the telescope in 1609 that he proved that the sun was constantly rotating.

The direction of rotation of the Sun is the same as that of the Earth, rotating from west to east, so sunspots move from east to west on the surface of the Sun as seen from the Earth. Since the Sun is a gaseous sphere, its surface rotates at different latitudes. The equatorial region is the fastest, taking only 25 days to complete one revolution.

As the latitude increases, the rotation speed becomes slower and slower. At 80 degrees latitude, it takes 35 days to make a turn. Compared with the nine planets, only Mercury and Venus have a longer rotation period than the Sun, and the other planets (including Earth) do not have a longer rotation period than the Sun.

Recent studies have found that the rotation period of different levels of the sun's interior is also different.

Not only is the Sun rotating, but it is also leading the entire solar system, orbiting the center of the Milky Way at a speed of 250 kilometers per second. We call this movement "the orbital motion of the sun". It takes about 100 million years for the Sun to revolve around once.

While the Sun revolves around the center of the Milky Way, it is also speeding towards the constellation Hercules, at a speed of 20 kilometers per second.

The sun is moving at such a fast speed, why can't we see it? This is because all the members of the solar system follow the motion of the sun, and each member carries the speed of the sun's motion. Therefore, each member does not feel the same part of the movement as the sun, but only the relative movement between himself and the sun.

It's like people don't feel like they're following the Earth's rotation.

in the universeNo object can be absolutely stationary, the so-calledStillness is only relative, all objects have velocity,Including the sun, the Sun also carries its galaxyOrbit around the center of the Milky Way, soThe sun is not static at all

The sun is toA near-circular orbit orbits the Milky WayOne of about 300 billion stars, the solar system is not close to the center of the Milky WayIt's about 26,000 light-years to the center of the Milky Way, it takes about a rotation of the solar system around the center of the Milky Way100 million yearsSince the formation of the solar system, the Sun has completed about 20 orbital orbits.

useThe Hubble Space Telescope accurately measures celestial distances, which astronomers mappedLuck of the Milky Way**, discover the Sun and its planets in approximately250 km secorbiting around the center of the Milky Way.

ForFor the planets of the solar system, the Sun is stationary because their relative motion is zero, but relative to the center of the Milky Way or other stars of the Milky WayThe Sun is a very fast-moving red giant, also with a planetary system moving with it at the same speed.

The Sun not only carries the 8 planets around the center of the Milky Way, but also rotates on its own axisThe rotation period of the equator is days, the rotation period of the poles is days.

Stars of the entire solar systemBoth have the same cosmic velocity as the sunIt's like a mosquito in a speeding car, it flies around leisurely in the car, but it actually has the same speed as a car.

NewtonThe explanation of the velocity of stars in the Milky Way is as follows:Stars near the center of the Milky Way, including the SunThe gravitational force exerted is equal to the gravitational force produced by the mass, this gravitational force is equal to the mass of all stars near the center of the Milky Way, therefore, the mass of the center of the Milky Way is equal to the total mass of all stars near the center.

He also indicatedThe combined gravitational pull of stars farther from the center is zero, those stars pull in all different opposite directions, canceling each other out. As a result, the star near the center gets gravitational pull towards the center and moves at a faster speed because the force acting on the star is greater.

No, the sun is also moving, but people can't notice the changes of the sun, the temperature of the sun is very high, and the people of the earth can't do without the sun.

No, the sun has a certain law of motion, it has been moving in the Milky Way, and the speed of movement is very fast.

Yes. The 8 planets revolve around the sun, so the sun itself doesn't move at all. There is also clear scientific evidence to prove it.

1. The stars are definitely turning.

2. All the celestial bodies in the universe are constantly rotating.

3. Stars are in relative rest and absolute motion.

All stars in the universe are constantly rotating, and because of the different references, we cannot judge the movement of the stars and the direction of rotation. But strictly speaking, the rotation of the stars is constant, and it will not stop. Therefore, for us, we cannot speculate about the specific orientation of the frame of reference and the reference, and therefore cannot assert how the star moves, but it is certain that the star is in constant motion.

There is no such thing as absolute stillness in the universeSo for us, everything in the world is in constant motion. Therefore, the stars in the universe are not excluded, so sometimes the reference object and the reference system are different, maybe in our eyes the stars are stationary, but objectively the stars are constantly rotating.

Yes, the stars in the universe are rotating like the planets, and they are orbiting the center of the galaxy at the same time as the star is autobiographing.

Many people think that stars don't rotate, but in fact, stars in the universe do. Galaxies are constantly turning, just as the sun is revolving around the galactic center.

Yes, in fact, many stars in the universe are rotating, but it is a pity that we can't observe them well.

Stars rotate, of course, and they all say that they rotate with the sun. With the sun, they can rotate in order, and they can live like this for a long time.

It is difficult to find out if the sun is rotating or not. This is because the day on the sun depends on the part of the sun you are a**. Confused? This also bothered astronomers for many years. Next, let us see how the rotation of the sun changes.

A point located at the Sun's equator takes days to revolve around the Sun to return to its origin, and astronomers say that this stellar rotation cycle is different from the first phase of the weather cycle, which takes a point on the Sun to rotate back to face the Earth again. But when you get close to the poles, the speed of the sun's rotation decreases, so in reality, it takes 38 days to rotate once in the area around the poles.

The rotation of the sun can be observed by observing sunspots, and all sunspots move on the surface of the sun. This movement is part of the revolution of the sun. Observations have also shown that the sun does not rotate like solids, but its rotation is different.

This means that it rotates faster at the equator of the Sun and slower at the poles. Like the gas giants Jupiter and Saturn, they also have different rotations.

Therefore, astronomers decided to measure the rotation speed of the Sun from an arbitrary position, counting 26° from the equator; It's probably the place where we see the most sunspots. At this point, it takes days to rotate and return to the same place in space.

Astronomers also know that the rotation of the inside of the sun is different from the surface. The inner regions, such as the core and radiating regions, rotate together like a solid. Then the outer layer, the convection zone and the photosphere, rotate at different speeds.

The Sun and the entire solar system orbit around the center of the Milky Way. The average speed of the solar system is 828,000 kilometers per hour. At this rate, it would take about 100 million years to orbit the Milky Way.

Whereas, the Milky Way is a spiral galaxy. It is thought to consist of a ** bulge in Fuzheng, 4 major arms, and several shorter brachial segments. The Sun and the rest of our solar system are located near the arms of Orion, between the two main arms, Perseus and Sagittarius.

The diameter of the Milky Way is about 100,000 light-years, while the Sun is about 10,000 light-years from the center of the Milky Way.

It has been suggested that our galaxy is actually a barred spiral galaxy. This means that instead of having a bulge of gas and stars in the center, there may be a star across the **bulge.

So when someone asks you what the rotation of the sun is, first ask which part they are.

Note: The Sun rotates faster at the equator than at the poles, which is caused by convective motion due to heat conduction and Coriolis force due to solar rotation. In a star-defined frame of reference, the rotation period of the equator is about days, and the poles are celestial.

As seen from Earth, the apparent rotation period at the equator is about 28 days as the Sun revolves around the Sun.

Due to the conservation of angular momentum, when a cloud collapses, it also starts to rotate and heats up as the pressure increases. Most of the mass is concentrated in the center, while the rest flattens into a disk that becomes planets and other solar system objects. The gravity and pressure of the cloud core generates a lot of heat as it absorbs more material from the surrounding disk, eventually triggering nuclear fusion.

fy: Floret.

Categories: Science & Engineering.

Analysis: In 1612, Galileo Galilei published a record of the activity of sunspots, confirming that the position of sunspots is not fixed, and that the sun does rotate. Scheiner, a German mathematics professor, made a similar observation.

By the middle of the 19th century, Carrington, an English astronomer, had made detailed observations of the sunspot and the solar rotation period, and he found that since the sun was not a solid sphere, but a sphere of gas, the rotation of its parts was different.

The rotation period of the sun varies with latitude, with a rotation period of 25 days for the equator, 27 days for a region of 40 degrees latitude, and 35 days for a region of 80 degrees latitude.

At the same time, the speed of rotation of the sun's slag is also uneven. Some scientists have proposed that the speed of the sun's rotation varies from day to day, and that the rate of change is between a maximum and a minimum. It seems so quiet that it's hard to explain.

Again: The Sun revolves around the center of the Milky Way.

Let's start with what a star is? What is Planetary?

Stars are huge gaseous planets that rely on internal nuclear fusion reactions to generate light and heat. Its minimum mass is about 7% of the mass of the Sun. Less than this mass, its gravitational pull cannot make the internal temperature high enough to trigger a fusion reaction, it cannot emit light and heat, and it cannot be called a star.

A planet is defined as a celestial body that orbits a star stably. The mass of a planet must be much smaller than that of a star because a planet cannot shine on its own. In other words, the planet is not massive enough to initiate a nuclear fusion reaction inside.

Under the action of gravity, two planets orbit each other, called a pair of double stars. When a binary star runs, it revolves around a common center of mass. If the masses of the two planets are the same, then the common center of mass is at the midpoint of the central line of the two planets.

And if the masses of the two planets are not the same, the position of the center of mass will definitely be biased towards the more massive of the two stars. When the mass of one star in a pair of binary stars accounts for the absolute majority of the total mass, this common center of mass will even be inside the massive star. In this way, one massive star is basically immobile relative to the other, while the small massive star revolves around it.

In the solar system, the mass of the sun accounts for more than 98% of the total mass of the solar system, and the mass of the other eight large planets, plus all the dwarf planets, asteroids, comets, meteoroids and small interplanetary bodies, is less than 2% of the total mass of the solar system. In this case, it is impossible for the sun to revolve around the planets, only for the planets to revolve around the sun.

That is, the planets revolve around the stars, rather than the stars revolve around the planets, because the mass difference between them is too great.

Do the stars move?

Stars are constantly moving, moving in different directions and speeds. We can decompose the velocity of a star relative to the solar system into two sub-velocities according to the vector decomposition method: one is along the direction of the observer's line of sight, which cannot be directly observed, and must be measured by another method.

The other fractional velocity is the tangential velocity perpendicular to the direction of the observer's gaze (or the self-velocity) of the star, which is not easily perceptible to the naked eye because the star is so far away. However, if you observe the change of a star's position relative to the background star precisely and over a long period of time, you can determine the magnitude and direction of its tangential velocity. The change in the shape of the Big Dipper 100,000 years ago and 100,000 years later is the result of the long-term accumulation of the different tangential velocity directions and sizes of these seven stars.

No. Because the gravitational pull of the sun has the greatest impact on the earth, the other planets are negligible.