What is the scientific knowledge of popular astronomy, what is the basic knowledge of astronomy?

There are several knowledge that ordinary people know, and I can cite so much, but in fact, this is a piece of ice at the tip of the iceberg.

1: There are eight planets in the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

2: The age of the Sun: more than 5 billion (years).

3: Which planet has the most moons: Jupiter (more than 60).

4: The closest to Earth is which planet: Mars (the closest to Earth is only.

5: The planet with the highest reflectivity: Venus (because of its thick atmosphere that reflects sunlight).

6: The largest moon: Ganymede (radius 2631 km) (Moon 1737 km).

7: Why Saturn's rings can be so bright, while other gas planets are not: This is because Saturn's rings are made of ice, Jupiter, Uranus, and Neptune all have rings, but the rings are made of dust and stone, and the reflectivity is not too high, and their rings are too thin.

8: Which star is close to the solar system: Proxima centauri

Popular Astronomy is a very "legendary" book. Its legend is threefold:

The author, Simon Newcomb, is legendary, and the Encyclopædia Britannica calls it "certainly one of the most prominent astronomers of his time." "This well-known Professor Newcom not only held an important position in the **, but also wrote a lot of books and covered a wide range of books in his life, and he was a person who could make learning alive in simple terms.

The translator, Mr. Jin Kemu, is even more legendary. Mr. Jin Kemu is self-taught by diligence, learning through the East and the West, integrating ancient and modern, liberal arts and sciences, proficient in many Chinese, and talkative, well-informed and sensitive.

The third legend of this book lies in the process of its introduction, its translation. At that time, Mr. Jin Kemu became interested in astronomy, so he chose to translate this book, and became obsessed with it. The poet Dai Wangshu went to visit him at the West Lake in Hangzhou and urged Mr. Jin Kemu to give up his interest in the starry sky and return to the study of language.

As a result, there is one less astronomer and one more master of language.

In addition to these legends, the reason for the book's longevity is its smooth writing, vivid descriptions, accurate illustrations, and timely updating of content. Half of the Chinese characters in the book are the original content, printed in black, and the other half printed in black blue, all of which are updated and supplemented by today's literary scholars, and even the content of Pluto's downgrade is included.

The style of the translation is simple: just rewrite the original text into Chinese. The special nouns shall be in accordance with the "Astronomical Terms" and "Physics Terms" published by the Ministry of Education.

Reference**.

Astronomy is the study of the structure and development of celestial bodies in space. The content includes the structure, nature and operation of celestial bodies. Astronomy is an ancient science, and it has played an important role since the beginning of human civilization.

It is mainly through observing the radiation emitted by celestial bodies to the earth, discovering and measuring their positions, exploring their motion laws, and studying their physical properties.

Chemical composition, internal structure, energy** and its evolutionary laws.

In the long history of astronomy, along with the study of methods.

, and successively founded astrometry, celestial mechanics, and astrophysics.

Research Methods: The objects of astronomical research are extremely large, extremely long, and extremely physical, making it difficult for ground laboratories to simulate. Therefore, the research method of astronomy relies mainly on observation. Due to the Earth's atmosphere to ultraviolet radiation, X-rays.

and rays are opaque, so many methods and means of space exploration have emerged one after another, such as balloons, rockets, artificial satellites.

and spacecraft, etc.

Astronomical theories are often due to the lack of observational information, and astronomers often put forward many hypotheses to explain some astronomical phenomena. Then, based on the new observations, the original theory is modified or replaced with a new theory. This is also where astronomy differs from many other natural sciences.

The basics of astronomy are as follows:

Star catalogs play a big role in our ability to effectively name stars and track stars that have already been named. Since most astronomers could not effectively use the Greek method of star naming, they named and added names to these catalogs.

One of the most important catalogs was created in Germany by Argelander in the mid-19th century. It was named the Bonner Durchmuterung. It is located at the Bond Observatory and lists hundreds of thousands of stars.

The sky is divided by constellations. The entire region of the sky is divided into 88 constellations. A constellation is a star that can form a certain pattern, named after a mythological character or its form. These constellations were first discovered by the Greeks more than 2,500 years ago.

Nine planets in the solar system have been named, although Pluto was defined as a "dwarf planet" in 2006, meaning it is no longer in the same category as the other planets we know. Earth, Mercury, Venus, Jupiter, Mars, Uranus, Saturn, and Neptune are the other eight planets.

When Pluto was first discovered, astronomers generally believed it to be a planet, but for years astronomers across the globe have debated whether it should be classified as a planet. In the end, they came to the conclusion of a "dwarf planet".

It is impossible to name or remember all the stars outside the solar system. Although hundreds of thousands of catalogs have been captured and documented at many research centers, there are still hundreds or thousands of catalogs. You will find that in most zodiac signs, the star named with the beginning of "a" is the brightest.

The next brightness will start with "b", and so on.

A good example of this is the Didebar, which is the brightest star in the constellation Libra. The only drawback to this method is that the Greek alphabet only has 24 characters. Therefore, if a constellation has more than 24 stars, it is impossible to name them in order of decreasing brightness.

The exact number of stars is always changing, so it's basically impossible to know the exact number. Even guessing is extremely difficult. You could say there are trillions of stars, but that's probably not quite the minimum number.

Many of the stars you can see without a telescope date back to ancient times. Since then, many of the traditions and customs used by the ancients to name stars have undergone many dramatic changes. We now have a very different process of choosing names for our stars.

The basics of astronomy are:

The celestial sphere is an imaginary sphere depicted with the observer as the center of the sphere and an infinite radius as the radius, and the celestial stars, the moon, and the sun are the projection positions on the spherical surface of this huge sphere. When a celestial body passes through the observer's meridian circle, it is called the mid-heaven. Due to the rotation of the Earth, celestial bodies pass through the meridian circle twice a day, and the one closest to the observer's zenith is called the mid-heaven.

Kepler discovered the three laws in the planetary observations that his teacher Tycho spent his life carrying, and the discovery of the first pulsar found evidence of its formation in the historical records more than 900 years ago. Even the most mundane astronomical observations require days or even decades of sustained observation before they can yield a conclusion.

Employment options after studying astronomy:

After graduating from astronomy, the employment direction is mainly engaged in scientific research, popular science popularization, teaching and technical work in astronomy and related disciplines, with positions such as trainer, marketing, cultural communication, copywriting planning, etc.

Meteorological Bureaus, Astronomical Observation Stations, Astronomical Knowledge Popularization and Publicity, Astronomical Observatories and Stations under the Chinese Academy of Sciences, School Astronomy Departments, Other Schools and Astronomy-related Teaching and Research Institutions, Journalism, Ministry of Culture and other relevant units.

Civil servants have a certain demand for outstanding college graduates with strong ability in professional fields, and students of this major can also choose to be admitted to the civil service after graduation.