Analysis of the difference between astronomy, what is the difference between astronomy and astrophys

Astronomy and mathematics are mutually reinforcing.

Astronomy is the discipline of observing and interpreting the physical conditions and events of celestial bodies, and collecting various information about celestial bodies through observation. However, because a large amount of data cannot be measured directly, it needs to be indirectly derived through mathematical calculus (such as the distance between the sun and the earth), which has promoted the development of mathematics, such as logarithms, spherical coordinate systems, and trigonometric functions, which are all derived from astronomical research.

Astronomy is increasingly demanding observation tools, and the manufacture of these tools also requires a high level of mathematics, physics, and chemistry. After Newton used the classical mechanics system to describe the macroscopic world in mathematical language, mathematics and astronomy became more and more closely linked, and non-Euclidean geometry and calculus developed rapidly under the needs of astronomy.

Astronomy is actually the most basic of science, without astronomy, there is no mathematics, there is no physics, and it is astronomy that governs the universe! Cosmology is a branch of astronomy. Mathematics and physics are both foundations of astronomy, and they were originally brought up by astronomy.

From large to small, astronomy is the study of celestial bodies in the universe.

The structure and development of the universe is a discipline. The content includes the structure, nature and operation of celestial bodies. Mainly through the observation of the radiation emitted by celestial bodies to the earth, discover and measure their positions, explore their motion laws, study their physical properties, chemical composition, internal structure, energy** and their evolution laws.

Astronomy is an ancient science, and it has played an important role since the beginning of human civilization. With the development of human society, the object of astronomy has developed from the solar system to the entire universe. At present, astronomy is classified according to research methods, and has formed three sub-disciplines: astrometry, celestial mechanics and astrophysics.

According to the classification of observation methods, several sub-disciplines of optical astronomy, radio astronomy and space astronomy have been formed.

Astrophysics is a sub-discipline of astronomy that applies the techniques, methods and theories of physics to study the morphology, structure, chemical composition, physical state and evolution of celestial bodies. Astrophysics is divided into sub-disciplines: solar physics, solar system physics, stellar physics, stellar astronomy, galactic astronomy, cosmology, cosmochemistry, astroevolutionary chemistry, etc.

In addition, radio astronomy, space astronomy, and high-energy astrophysics are also branches of it.

The study of astronomy includes:

1. Planetary level.

These include planets in planetary systems, moons orbiting planets, and a large number of small bodies such as asteroids, comets, meteoroids, and interplanetary matter. Stellar systems.

2. Stellar level.

Hundreds of millions of stars have been observed, and the Sun is just one of the many stars.

3. Galaxy level.

The solar system in which humanity lives is only a corner of the Milky Way galaxy, which is made up of countless stars. The Milky Way is just an ordinary galaxy, and in addition to the Milky Way, there are many extragalactic galaxies. Galaxies are further formed into larger celestial systems, galaxy groups, galaxy clusters, and superclusters.

4. Universe. Some astronomers have proposed total galaxies that are one level higher than superclusters. According to today's understanding, the total galaxy is the extent of the universe that can be observed by humans today, with a radius of more than 10 billion light years.

One of the hottest and most unconvincing topics in astronomy is the study of the origin and evolution of the universe. Theories on the origin of the universe emerge one after another, among which the most representative, most influential, and most supported theory is the big ** theory put forward by American scientist Gamow and others in 1948. According to this theory, which is constantly evolving, the universe was born in a violent explosion about 13.7 billion years ago.

Then the universe is constantly expanding, and the temperature is constantly decreasing, producing all kinds of elementary particles. As the temperature of the universe drops further, the matter begins to collapse due to gravity, gradually forming clumps. Galaxies began to form about 10 years after the age of the universe and gradually evolved into their current form.