Fortune Telling Collection - Zodiac Analysis - Think about how far the stars are from us.
Think about how far the stars are from us.
How far are the stars from us? 1. Do you know how far the stars are from us? Last week, I read the book How Far Are the Stars from Us, which talked about a lot of astronomical knowledge, and I learned a lot through reading. I know many stars and constellations that I didn't know before. The new stars are: eros, Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune.
The book says that there are millions of stars in the cluster of the Milky Way galaxy, and they form a team, just like the police are divided into several teams. Some stars are far away from us and some are close to us. The brighter the star's light looks, the closer it is to us, the darker the star's light looks and the farther it is from us. The farthest galaxy is more than10 billion light years away.
The moon is the first stop for human beings to fly out of the earth and step into space, and it is the planet where human beings have left footprints outside the earth so far. The moon seems to be an immortal "sky lamp". The description of the starry sky in the book is very beautiful, as if it brought us into the artistic conception of the beautiful starry sky.
After reading this book, I learned something, but I still don't understand a lot of knowledge in the book. I don't know what "triangulation" is, and I don't know the distance of "parsec", but I will definitely understand it through study in the future. I am very happy to be friends with this book. In the future, I will learn more about astronomy.
This book was written by Bian Yulin, a famous popular science expert. The "star" in How Far Are the Stars from Us does not simply refer to the stars we see, but to the constellations, the sun and the moon in the universe. This book is very well written and leads us to the door of mysterious astronomy. Astronomy is a mysterious subject that fascinates us. It studies tangible and intangible things, but it fascinates us with these tangible and intangible things. This book uses some modern things, which is in sharp contrast with previous daydreams. It shows the author's love for the sky and people's praise for the sky. Moreover, this book is beautiful in language and rich in content, which makes us fondle admiringly when reading. If you have a chance, please read this book, too!
At night, the stars twinkle in the sky. Who can tell me how far the stars are from us? Stars of different shapes let us explore the mysteries of space. Great men are fighting for this cause, and their faith will explore the universe. In the 2 1 century, people are still attacking the Milky Way ... I don't understand this book very well, but I feel that after reading it, I left colorful pages in my memory. It is good for my future study and life. Please have a look!
How far are the stars from us? This week, I finished reading how far are the stars from us, from which I realized the vastness of the universe and the magnificence of the planet.
This book mainly tells the distance between some planets in the solar system and our earth and the method of measuring the distance. This book first introduces the moon, because the moon is the closest planet to the earth. Before man landed on the moon, people had been exploring the distance between the earth and the moon, which made many scientists have a headache. However, some scientists have thought of a way: first launch radar waves to the moon, calculate the round-trip time, and then calculate the approximate distance according to the radar propagation speed. Of course, this data is only an approximate value. With the continuous progress of human science, the distance from the earth to the moon is about 380 thousand kilometers.
When people landed on the moon, they turned their eyes to the sun, the center of the solar system. The sun is an immobile star, which is farther away from the earth than the earth is from the moon. Now mankind has built the fastest plane-1 sec1km, but it will take four years and nine months to fly to the sun, which shows that the sun is very far away. However, scientists have figured out a way: when Venus is just in front of the earth in orbit, scientists can emit radar waves from the two poles of the earth, measure the angle between Venus and the sun, and measure the parallax distance by parallax method, and then we can get the distance between the sun and the earth.
Scientists regard the distance between the sun and the earth as the unit of length-astronomical unit. This "ruler" has been used ever since. People use this ruler to measure the distance between Mars, Venus, Neptune and other planets. At present, people have measured the distance between stars in many galaxies. The farthest galaxy measured by humans is about10 billion light-years away from the solar system, which shows the vastness of the universe!
After reading this book, I feel the vastness of the universe, and the contribution of human beings to exploring the universe is attributed to scientists. Therefore, only by studying hard can we make contributions to the motherland.
How far are the stars from us? On a summer night, the stars shine. Looking at the stars in the sky, I meditated on "The Market in the Sky" and couldn't help thinking, is there really only a "not too wide Tianhe" between the cowherd and the weaver girl? So, I picked up this book, How Far Are the Stars from Us, and opened the first page. After reading it, I realized that if the Cowherd and the Weaver Girl really want to meet, it will take 16 years to travel at the speed of light, and it is impossible to meet once a year.
While reading, I found that astronomy is an infinite and fascinating subject. This book lays out the process of creating "celestial ruler" by astronomers in past dynasties, and introduces us to the moon and other celestial bodies from near to far. This book not only contains rich scientific knowledge, but also introduces historical figures and backgrounds. Let readers understand the spirit of historical figures exploring astronomy while understanding science. This book is fresh in conception, rigorous in logic and fluent in writing. The astronomical stories told by the author are vivid and interesting, which is a rare masterpiece of astronomical science. Through reading this book, I know that science is actually a wonderful art, and everyone can walk into science, just like listening to classical music, with a gradual process. This process is rich and colorful, and this book is the only way to cultivate our scientific interest. Whenever night falls quietly, looking at the quiet sky, the bright moon is in the sky and the stars are woven, the vast universe always fascinates people on the earth. It is precisely because of our perception, understanding and observation that some knowledge is a drop in the ocean that we will explore the mysteries of the universe more persistently.
How far are the stars from us? At night, the stars twinkle overhead. Whenever I look up at the starry sky, there is always a question-how far are the stars from us?
How far are the stars from us describes how to measure the distance of some astronomical targets with trigonometry, Kepler's law, transit of venus, stars and aberration, and many interesting stories and pictures are inserted in the book. Make this book look lively and interesting, and let readers wander in the galaxy.
How far are the stars from us? It is like a "celestial ruler", measuring the distance from every variable star, galaxy and galaxy to us, so that we can truly appreciate the vastness of the universe. It has also brought our curiosity about space closer.
Various physical models, the "period-luminosity relationship" of variable stars, the "red shift" law of galaxies and so on. Let us see the diligence and efforts of astronomers, and even insist on the truth from generation to generation, which has laid a milestone for us to explore the starry sky.
From variable stars to supernovae, from democritus to Kant, vivid historical stories and the discovery of planets are the painstaking efforts of thousands of astronomers in Qian Qian. They not only let us see the complete galaxy, let us know more about astronomy, but also give us the motivation to explore galaxies.
How far are the stars from us? We are introduced to the dimming period of some variable stars, the concepts of magnitude and absolute magnitude, the relationship between star spectrum and magnitude, the feasibility and limitation of spectral trial and error method, globular clusters ... which make you marvel at the ingenious methods of scientists.
The stars are far away from us. We can see and touch them, but we won't stop exploring.
Cover the aftertaste, through the ages, people look up at the sky, starry, concerned about Tianhe, dark, charming autumn night. How many people revel in this picturesque scenery.
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