There are many stars in winter, what are the stars in the sky?

There are a lot of stars in winterThe stars seen in the sky are cosmic celestial bodies visible to the naked eye. The sparkle of different sizes we can see is due to the energetic activity inside the star, which causes the star to become irregularly shaped. The brightest planet is Venus, and the stars can be roughly divided into planets and comets.

Stars, white dwarfs.

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Every shining star we see in the sky could actually be one or more stars. The closest constellation to Earth, Centauri.

It's made up of three stars, but because they're so close to each other, we can't tell how many there are with the naked eye. Other stars also belong to the Milky Way.

The solar system as we see it every day.

It is also a member of the Milky Way. A system of the same level as the Milky Way is called an extragalactic galaxy. We can't see Andromeda with the naked eye.

Although the entire constellation Andromeda also shines, we can only see cloud-like clusters. <>

Certain planets or comets in the solar system, at special times, look like stars at night. Just like Venus will rise and set with the sun in the east and set in the west, because their position in the sky is constantly changing. Those stars that do not change their positions are the stars in the Milky Way. <>

We often say that there are many constellations of stars in the sky, such as Leo.

Sagittarius, but this constellation is completely different from the real galaxy concept. Because the solar system revolves around the Milky Way, the stars follow the rotation all the time, so the stars we can see do not change much compared to the Earth's coordinate system, and it will take thousands of years to change significantly. Therefore, in order to remember the position of the stars in the sky, the ancients divided the stars in the sky into multiple regions and imagined the constellations according to the shape.

Until scientists discovered that the distance between the stars in the constellation Andromeda was far beyond the scope of the Milky Way, so the concept of extragalactic galaxies was first born, and then compared with the previous name of the constellation, it was possible to identify which constellation the galaxies were roughly located in, which could be used to name other extragalactic galaxies.

In fact, every star in the sky is one or more stars, but because these stars are relatively close to each other, the naked eye cannot tell how many there are.

There are many stars in winter, and the stars you see in the sky are one or more stars, including stars from the solar system and suns from other star systems.

Most of them are stars, a few are planets, there are comets at special times, and some are brighter deep-sky objects.

The shining stars in the sky are essentially one or several stars. There is a supernova explosion in the universe, and we can see it, but it is too far away, so it looks like a dot. It could also be a comet or a planet.

There are mainly stars (such as Sirius), as well as planets in the solar system, and some galaxies outside the Milky Way (such as the Great Magellanic Galaxy, the Andromeda Galaxy).

In addition to this, there are also comets in the solar system and so on.

The two bright stars in the sky are Venus and Jupiter.

Venus and Jupiter are the closest together, Venus is the brightest star in the sky, and Jupiter is second only to Venus in brightness.

The low is Venus and the high is Jupiter. Venus is particularly bright because of its close proximity and its reflective atmosphere. Venus can reach at its brightest and so on.

Jupiter is large and reflective, and Jupiter is above magnitude 2 at its brightest. They are the brightest stars in the sky, and both are brighter than Sirius. Sirius has only waiting.

Geographical features. The sky of Venus is orange-yellow. There was also thunder and lightning on Venus, with the largest lightning ever recorded lasting 15 minutes.

Venus's atmosphere is mostly composed of carbon dioxide and contains small amounts of nitrogen. The atmospheric pressure of Venus is very large, 92 times that of the Earth, which is equivalent to the pressure in the Earth's oceans at a depth of 1 kilometer. The presence of large amounts of carbon dioxide has caused the greenhouse effect to be carried out on a large scale on Venus.

Without such a greenhouse effect, the temperature would drop by 400 .

It's winter, and the time of the year with the most bright stars has arrived, and the gathering of the three planets has added a lot of highlights to the cold and lonely starry sky.

In terms of brightness, Venus, the great southwest planet that can only perform in the sky for less than two hours in the evening, is the brightest star second only to the sun and the moon, and can be seen from the southwestern horizon with your head tilted, needless to say;

The second bright star is Mars, the red god of war rising in the east after dark, shining in the middle of the sky at about ten o'clock in the evening, which is very eye-catching;

The third bright star is probably the brightest star of the day, Sirius, which rises in the southeast at about nine o'clock in the evening, and appears prominently in the southeastern sky at about eleven o'clock in the evening, and is the brightest star in the constellation Canis Major;

The fourth bright star is Saturn, which rises above 9 p.m. in the east, and will reach its peak at opposition in January.

People in the area north of the Yangtze River may not be able to see the fifth bright star, and the southern Jiangsu region can only see it for more than an hour at about 0:00 to 1:00 in the middle of the night, that is, the Antarctic Xianweng Old Man Star, the brightest star on the base of the ship, people in the Beijing area want to see this star, please travel thousands of miles south, this is the second brightest star in the whole day of Laoxianzhou only in Sirius;

Other eye-catching stars include Vega, a remnant in the northwest sky;

Orion two stars Betelgeuse and Betelgeuse seven, Taurus Aldebaran five, Mulford five chariot two, Canis Minor's South River two, Gemini North River three;

The grape-shaped Seven Sisters of Taurus serve the Pleiades and so on.

Many stars can be seen in the summer, but only a few scattered stars can be seen in the winter. The number of stars depends on the degree of transparency (or pollution) of the earth's atmosphere and the change in atmospheric density, in summer the air humidity is high, there is more rain, the degree of air pollution is relatively small, and the transparency is high, while in autumn and winter, there is relatively little rain, air pollution is large, and there is more particulate matter in the atmosphere, which affects the propagation of light in the air. Friends, do you study weather forecasts?

Will there be sandstorms in the summer? Space outside the atmosphere is empty and does not affect the propagation of light. We see the stars"Blink"It is also caused by the instability of the atmosphere.

Some air goes up, some air falls, so the refraction of light in the atmosphere is constantly changing, so the brightness of the stars we see is constantly changing! This is also why the brightness of the stars we see is constantly changing. In some ways this is true, because it is natural that the outer edge of the Milky Way seen at night in the Northern Hemisphere in winter, far from the center of the Milky Way, has few stars.

But in the Northern Hemisphere, there are more bright stars in winter than in summer. The position of the solar system in the cantilever of Orion is about 26,000 light-years from the center of the Milky Way, and in the 100,000 light-years of the Milky Way, the position of the Solar System is exactly halfway to the center of the Milky Way, but the density of stars at the edge of the Milky Way is low.

Red arrows"n "Indicates the direction of the Earth's northern zenith"n "Indicates the approximate direction of the Sun's North Pole. The ** above clearly shows that the North Pole on the ecliptic plane of the solar system is far away from the Milky Way. Knowing the position of the center of the Milky Way relative to the north celestial pole of the ecliptic plane, it is not difficult to understand why there are not many planets in the winter sky, but why there are more bright stars in the winter sky.

Well, there is no explanation for this, but it was purely a fortuitous event, we can only say. This yellow circle is about 1,000 light-years away.

In fact, in our night sky, all the stars visible and discernible to the naked eye are in this yellow circle. In the true sense of the word, the stars of summer and winter are more or less indistinguishable, mainly due to the density of stars in this direction. Sirius, Orion, and the Pleiades star cluster.

Looking forward to your observations, of course it's summer, so let's look at the Milky Way and the Summer Triangle (the triangle formed by Vega, Cygnus, and Aquila).

What stars in the sky cannot be seen in winter and summer?

Hello, according to your description, the stars that cannot be seen in winter and summer refer to the stars north of the Tropic of Capricorn, which are also generally called the South Celestial Pole Star. The Southern Pole Stars are the polar bear galaxies located north of the orbit that makes up the Earth (i.e., the Tropic of Capricorn), and the Bimilton galaxy next to them, which are located at the northernmost point of the Milky Way, hidden north of the equator, and cannot be seen only for certain periods of time. Because it is on the same plane as the equator of the foreball, in summer, when the southern celestial pole is at the high pole to the north, the sun and its beams will obscure it, making it invisible; In winter, the Earth is in motion, so that the Southern Pole Star is obscured by shadows, and their light cannot be seen.

During the Northern Hemisphere winter, the brightest star in the sky is Jupiter, which appears in the eastern sky after sunset.

Jupiter is a planet and its position in the sky changes. Jupiter is the largest and fastest-rotating planet among the eight planets in the solar system, the fifth planet from the inside out. It has a mass of one-thousandth the mass of the Sun (between 1,024 and 1,025 to be exact) and is twice the mass of the other seven planets in the Solar System combined.

Since Jupiter, Saturn, Uranus, and Neptune are all gas planets, they are also called Jupiter-like planets (Jupiter and Saturn are collectively called gas giants).

Jupiter is a gas giant that makes up 70% of the mass of all planets in the solar system and is composed mainly of hydrogen, which accounts for 75% of its total mass, followed by helium, which accounts for 25% of the total mass, and the core of the rock contains other heavier elements. What humans see is usually the tip of the clouds in the atmosphere, with a slightly higher pressure than 1 atmosphere.

Summer for the Northern Hemisphere and winter for the Southern Hemisphere. For the Northern Hemisphere, we are facing the center of the Milky Way at night in the summer, and we are facing the edge of the Milky Way at night in the winter, so there are the most stars in the summer for the Northern Hemisphere. In addition, due to the cold weather and high air pressure in winter, the clouds in the sky will be much thinner, and the number of stars that can be seen will naturally increase.

Winter is the busiest season of the year when the stars are in full bloom, as if they are meeting the stars of the starry world. Let's start with the constellation Orion in the southern sky. The majestic constellation Orion has been famous since ancient times for its three bright stars located in a row, and the famous "Betelgeuse Three" has shown their existence before the name "Toyaku" appeared.

Both ancient and modern, Chinese and foreign, people praise and attach great importance to it as a symbol of victory and glory. Because Samsung is so eye-catching, it's easy to identify Orion.