Why do the stars in the sky shine, and why do the stars in the sky shine?

Some of the stars in the sky are stars, some are planets, or some other celestial bodies. Stars naturally emit light, while others do not.

It relies on the light reflected from the star. Just like the moon doesn't actually shine, but by reflecting the sun's light, we can see it at night.

When you say that stars glow, you see stars, and stars are made up of hot gases that emit light on their own, so humans can see the so-called stars with the naked eye, and they don't shine when they can't see them"Stars"It is other than the star; But there are exceptions, such as the Moon, which is the moon of the planet Earth, which is able to receive irradiation from the sun"Glow".

Level: Wenqu Xing.

16 July 2006.

Most of the stars that can be seen at night are stars, and a few are stars of our solar system, such as Venus, Mercury, and Mars. Stars emit light on a similar principle to our solar image, with most of the energy released by the fusion of hydrogen into helium nuclei, and some of the energy released by helium fusion.

It's only because they're so far away from us that they look like the gentle little stars of the branch, but in fact they're much bigger than the sun. The planets look bright because they reflect the sun's light, but they only take up the light that is close to us, and they seem to be brighter than the stars.

The reason why we can see the stars is because many planets are stars, and due to the interaction of hydrogen and helium, they produce energy for a short time, just like the sun, which can emit light

I listened to the nebula gas action of the universe, so I used some light, because the light was not particularly large.

So if you can't see it during the day, it's easier to see it at night.

Hehe, I don't know if it's true, I haven't seen it with my own eyes.

There are two kinds of stars that we see: one is the one that shines by itself, which we call stars; The other is called a planet that does not emit light. Stars emit light because of nuclear reactions, and stars emit a huge amount of energy due to the reaction of four hydrogens to produce one helium nucleus, so they emit light.

Planets emit light due to the reflection of the light of the star. Stars are celestial bodies made up of hot gas that emit light on their own; Planets are larger celestial bodies that orbit stars and do not emit light on their own; For example, the Earth is the planet of the Sun, and the Sun is the star. At night we see that the stars are always twinkling, as if they are blinking, why?

This is due to atmospheric flows. If we look closer, not all stars blink, there are some stars that don't. All the stars that blink are stars very far away from the sun, and the light of these stars has to penetrate a very thick atmosphere to the ground.

Because the atmosphere is not static, it is blowing around and moving in constant motion with the rise and fall of warm and cold air. When the stars far away from the earth pass through the high-altitude atmosphere, they are refracted by the atmosphere of different densities and temperatures, and the starlight gathers for a while and disperses for a while, so that people's eyes are blocked by the turbulent atmosphere when they look at the stars, and they always feel that the stars seem to be blinking. The stars that don't blink are the ones that are closer to the Earth and are less refracted by the atmosphere, so they don't appear to flicker.

Many of the stars in the sky are stars, which themselves emit light, and some planets are close to the stars and the light is reflected on the planets, and we can also see bright stars.

Most of the stars are stars, and the stars themselves emit light, and these lights are produced by nuclear fusion inside the stars.

The stars that we see are just like the sun, and stars are stars that emit light on their own. So it's bright.

That's the sun, just far away.

Those are the stars in the universe, like our sun. Like us, the Earth doesn't shine, so in the universe the Earth can't be seen if you're on another planet.

The so-called stars should be the planets far away from us, and the moon is the same, it also shines in the sky, but these lights are not emitted by the planets themselves, but by the reflection of the sun!

The first reason is the stars.

will burn (nuclear fusion), this.

Burning stars are called stars.

The second reason is that stars reflect light.

Lines, such stars that reflect light include planets, moons, and other small stars.

One of the reasons for determining the brightness of a star is its ability to emit light, which varies by a factor of 10 billion in size. Another reason is the distance between the stars and us, and generally speaking, the closer the stars are to us, the brighter they become.

The size of the stars is another case, large stars do not necessarily shine very strongly, and some stars that appear to be faint are often huge stars.

The brightest known star, up to 1 million times the luminosity of the Sun; The smallest star is only one millionth of the luminosity of the Sun. In astronomy, stars with low luminosity are called dwarf stars, stars with large luminosity are called giants, and stars with particularly large luminosity are called supergiants.

To compare the true luminous power of stars, astronomers use absolute magnitude to indicate the luminosity of stars. That is, put different stars at the same distance for comparison. It's like a race, standing on the same starting line.

The star's "starting line" is defined at a distance of 10 parsecs (light-years) from the observer. The brightness observed at this distance is expressed in absolute magnitude.

Summary. Venus is a relatively bright star in the night sky, and can be observed with the naked eye even when the sunrise and sunset rays are relatively strong and the other stars are gone, and the moon certainly can't hide her.

Why is there always a very bright star in the sky?

Venus is a relatively bright star in the night sky, and can be observed with the naked eye even when the sunrise and sunset rays are relatively strong and the other stars are gone, and the moon certainly can't hide her.

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