Constellation knowledge: Will planets shine or stars shine?

Planets and stars are spheres, which can rotate and revolve around a certain center, but they are different in mass and composition. One will shine and the other won't, so which one will shine? Why? Let's use constellation knowledge to reveal the reason!

Will the planets shine or the stars shine?

The stars shine. The star has a huge mass, and its internal temperature is as high as 654.38+million degrees Celsius. At such a high temperature, the substance will have a violent thermonuclear reaction. In the process of reaction, the star will lose part of its mass, and at the same time release huge energy, which will be transmitted from the inside out, making the star look shiny. The mass of a planet is much smaller than that of a star. Jupiter, the largest mass in planets of the solar system, is less than one thousandth of the mass of the sun, and the temperature inside the planet is much lower than that of the stars. It is impossible to reach the level of thermonuclear reaction, so they do not emit light.

Star introduction

The star is a spherical luminous plasma condensed by gravity, and the sun is the closest star to the earth. Almost all the stars that can be seen at other nights on earth are in the Milky Way, but because of their long distance, these stars seem to be just fixed luminous points. Historically, those prominent stars have formed constellations and clusters, and the brightest stars have their own traditional names. The catalogue of stars compiled by astronomers provides many standards for the naming of different stars.

At least during the life of a star, the star will undergo a nuclear fusion reaction in which hydrogen is fused into helium at the core, transfer energy from the inside of the star, travel a long distance, and then radiate from the surface to outer space. Once the hydrogen in the core is exhausted, the life of a star will be over. Astronomers can learn about the mass, age, chemical element abundance and many other properties of stars by observing their motion, brightness and spectrum. The total mass of a star is the main factor that determines its evolution and ultimate fate: a star, including its diameter, temperature and other characteristics, will change at different stages of its life, and its surrounding environment will affect its rotation and movement. Charts depicting the temperature and brightness of many stars enable us to measure the age and evolution of stars.

Introduction to planets

Planet (English: planet, Latin: planet) usually refers to a celestial body that does not emit light by itself and surrounds a star. Its revolution direction is often the same as the rotation direction of the surrounding stars. Generally speaking, the planet needs to have a certain mass, and the mass of the planet should be large enough to approximate a sphere, so that nuclear fusion reaction can occur like a star.