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In the early winter of 2005, when I looked up at the starry sky for the first time, I had the same doubts as the landlord at that time. Now I have made friends with the starry sky: "Without him, only the hand is familiar." ”
There are a total of 88 constellations throughout the day, and there are nearly 200 bright stars above the third magnitude, because of the rotation and revolution of the earth, there will also be the Sunday and annual movements of celestial bodies, and the five major planets passing through it. When I first set foot in the starry sky, it took me a whole year to look up and gradually memorize their names. All in all, Rome was not built in a day, and there is no hurry.
Where there's a will, there's a way. Even if the future is bumpy, as long as you are willing to pay, you can always achieve your goal. The most powerful tool for getting started with the stars is the rotating star map, which can roughly simulate the position of celestial bodies at any given moment.
Next, it's time to put it into practice. Pick up the star map in your hand, and now meditate in your heart until "the melon is ripe" (at this moment there are xx constellations in the sky, xx constellations are in the xx constellation xx direction, xx stars - xx stars - xx stars constitute a significant pattern, etc.). Then, let's go to the heavens and take a look, and the result is basically conclusive, and it is likely to get lost.
At this moment, in the corresponding star chart, see which stars are recognized correctly, and some stars are taken if they are wrong. After 3-4 observations, it's time to leave the star chart.
However, the star map is dead, and the starry sky is alive. Or the previous Sunday anniversary movement, maybe you know the starry sky at the moment, and look at it in 3 hours? If you look at it in two months, I'm afraid it's inevitable to get lost.
What to do? No way, just keep practicing. Knowing that the most prominent signs of the starry sky are thoroughly memorized, it may be possible to introduce each constellation in turn (such as the triangle in summer, the quadrilateral in autumn, the W-shape in Cassiopeia, etc., and the hexagon and triangle in winter).
Then it can be said that the starry sky of a certain season has passed.
After that, it was perseverance, and the winter starry sky could only see its magnificent light in the cold wind.
The long stargazing road is often a solo walk. It may be a rugged path, but you can find wonderful things in it that ordinary people can't find.
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You can see it with a star chart.
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The names of the stars are: Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, Ceres, Vesta, Cowherd, Vega, Sirius, Arcturus, Polaris, Big Dipper, Big Dipper (a total of seven stars, namely: Tianshu, Tianquan, Tianji, Tianxuan, Yuheng, Kaiyang, Yaoguang), Old Man Star, Tianjin.
Fourth, the North River. 2. North River.
3. Xuanyuan. Ten.
4. Betelgeuse. 7. Betelgeuse. Fourth, Antares second-class.
Stars are divided into types: stars, planets, moons, dwarf planets (this classification is only in the solar system), small bodies (asteroids, comets, etc.).
Stars are divided into stages: novae, main-sequence stars, red giants, supernovae (divided into the following types) 1 white dwarf, 2 neutron stars; 3 black holes.
Stars are divided by size: (maroon-red) dwarfs, (blue, blue-white, yellow, red) giants, (blue, red) supergiants.
Stars are divided into o, b, a, f, g, k, m and additional types such as r, n, and s according to the spectrum.
Stars are divided into combinations: single stars, double stars, clusters, and clusters.
Other classifications of stars: non-variable, variable.
Variable stars are divided into: Cepheid variables, eclipse variables.
Planets are divided into Jupiter-like planets and terrestrial planets according to their composition and volume.
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The stars we see are stars, planets, moons, or neutron stars. Stars are due to the nebula dust floating in the universe to absorb the asteroids or other materials next to it, and then through aggregation, compressed to the center, at a certain time, due to the high temperature and nuclear fusion reaction, and then after the large ** to form a star, as for how long, depending on the size and mass of the nebula, the larger the size, the higher the mass, then the faster the formation, about hundreds of millions of years to billions of years; As for the planet, it is formed by the impact of asteroids in the universe, or there are large planets separated, and it does not emit light itself, we can see that it is because it reflects the light of other stars, and the time of formation is after the formation of the star, or it is captured by other stars after the formation; The formation of moons is largely consistent with that of planets; Neutron stars form after star formation, and stars with masses greater than the Sun may form neutron stars after collapse, and the formation time depends on the mass and spontaneous combustion rate of the star.
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1. Tianxuan, the name of the star, is one of the seven stars of the Big Dipper, that is, the second of the Big Dipper, in the north of Taiwei. Ursa Major, also known as Merak, is derived from the Arabic word for "bear's" and is located in the constellation Ursa Major, which is the constellation of the Northern Arch Pole.
Sky Xuan is light-years away from the Sun (parsec) and has an apparent magnitude of +, which is visible to the naked eye. As a member of the Big Dipper, Sky Xuan is better known in the Northern Hemisphere. Sky Xuan is adjacent to Ursa Major (constellation Ursa Major), and the extension line of the two stars points to the North Star.
It is also one of five moving asterisms in the Great Big Dipper constellation of Ursa Major, a group of stars that share the same space, but are not in the same area of the celestial sphere in our view.
2. Vega, also known as Vega or Lyrae, is the brightest star in the constellation Lyra, located about 25 light-years from Earth.
Due to its extremely high rotation speed, it exhibits a pronounced oblate spherical leakage, with a radius of 19% greater than the polar radius.
3. Fomalhaut (Oscaria Persis) is the main star of the constellation Ostellaria Oscarata, about light-years away from the Earth. It is a first-magnitude star, and it is the 18th bright star that can be seen on Earth in addition to the Sun.
Fourth, the North Star refers to the star closest to the North Celestial Pole, so the North Star is not constant, and what it refers to at this stage is "Gou Chen Yi". Located about 434 light-years from Earth and with a diameter of about 52 million kilometers, Polaris is slightly more than four times the mass of the Sun, making it a star with a relatively stable brightness and position that can be seen in the night sky.
5. Cassiopeia star, the fifth star in Cassiopeia is a bright star, with a visual magnitude of +. It is a blue giant of type B3III, 420 light-years away. The star has 8 times the mass of the Sun and is 2,500 times brighter than the Sun.
It is a young star, about 25 million years old.
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The stars that people see are planets and stars. Stars refer to celestial bodies in the universe that are visible to the naked eye, and the energy activity inside them makes the stars irregularly shaped. Stars can be broadly divided into planets, stars, comets, white dwarfs, etc.
The brightness of a star is often expressed in terms of magnitude. The brighter the star, the smaller the magnitude. The brightest planet is Venus, the fastest star orbiting at more than 2.4 million kilometers per hour, and H1504+65 is the hottest white dwarf.
Stars are large celestial bodies such as the Sun that react internally and radiate energy into space in the form of light.
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There is rain before and after the Dragon Boat Festival, and it is difficult to observe the stars.
Why can we observe the stars? The little dots of light that twinkle and flicker are so mysterious. The reason is that stars are also stars, like the sun, but they are too far away from us, so we can only see a small bright spot, some stars are moving with asteroids, but the asteroid itself does not emit light, we can see it because there is a star's light shining on it.
The stars cannot be observed during the day, but we can see them with the help of professional software. Every day when the sun slowly rises in the east, in the professional software, you can also see Taurus and Gemini appear one after the other, and in the past spring, they are the brightest stars in the sky at night.
Looking forward to the sunny days, the night is late, we are facing north, and we can find the Big Dipper as always.
Turning to the south, with the moonlight, Scorpio is clearly visible, and the one that glows red is Antares, which is the main star of Scorpio, with which it can find other stars in Scorpio. Next to Scorpio, we can find Libra.
The summer starry sky is extraordinarily bright, accompanying you and me.
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Stars are planets that can be seen because they can emit light or emit light from others like the moon, and they are far enough for us to see it.
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We have vision, our brain can process everything that our eyes see, and when we have vision, we can see the stars. Stars are stars like the sun, planets like the earth, meteors, and so on.
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Stars are able to emit light on themselves, so we can see clearly. Stars are self-luminous stars that resemble the sun.
Manage yourself well, do everything well, be upright, have good conduct, and work hard to learn and enrich yourself.
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