A flaming gaseous spherical star radiates light and heat, and a number of planets revolve around it. There are many stars and planets in the atmosphere, and the stars are a luminous gaseous celestial body. There are a number of planets orbiting in outer space, and they are among the miracles of theology that God Almighty created. Scientists have referred to many studies regarding the outside world and the Earth, and it is the only suitable planet that lives in it because 75% of its surface is water. In this article, we will talk regarding planets and their characteristics, and what is a spherical star that radiates light and a number of planets revolve around it, mentioning the characteristics and characteristics of the sun, how far is this regarding the ground.
Planet definition
A planet is a celestial body that revolves around the sun and has sufficient mass to help its gravity overcome the force of fixed objects. There are eight planets in the solar system, including the rocky inner planets, which are Mercury, Venus, Earth and Mars. The outer planets are the giant gas planets, which are Jupiter, Saturn, Uranus and Neptune.
The main difference between an ordinary planet and a dwarf planet is the type of objects that share its orbit around the Sun, for example, Pluto has not cleared its orbit of similar objects, while Earth and Jupiter do not have worlds of similar size to the Sun.
A flaming gas spherical star radiates light and heat, and a number of planets revolve around it
A flaming gas spherical star emits light and heat and a number of planets revolve around it. It has a very large size that separates it from the others. It contains eight main planets. The sun is the central star of the solar system. The loose plasma is intertwined with the magnetic field. It is the most important star and one of the stars. It contains a galaxy The Milky Way contains regarding 200 billion stars, and the galaxy belongs to a group of other galaxies called the Local Group. This definition is due to
The main characteristics of the sun
The sun is the only fixed star around which the earth and other planets revolve around the solar system. It is the dominant body in the system and represents more than 99% of its entire mass. It is the source of a huge amount of energy. The energy we get from the sun is what dictates the environment of the earth and it is important , it is very important for the existence of humanity, and one of the most important characteristics that distinguish the sun is the following
- The sun has a diameter of 1,390,000 km, and what we see when we look at the sun is not a solid luminous surface, but rather a spherical layer called the photosphere.
- The Sun’s atmosphere is transparent, allowing light to escape from below the photosphere.
- The solar mass is equivalent to 330,000 Earth masses or 2 x 10 30 kg.
- The rotation of the sun is evidenced by sunspots crossing the solar disk in regarding two weeks, then disappearing, and then reappearing at the opposite end two weeks later.
- The total power output or luminosity of the Sun is 4 x 10 26 W, and this can be found by measuring the Sun’s constant.
- The solar spectrum is not a perfect blackbody spectrum because absorption features significantly alter the blackbody spectrum.
- The Sun is 149,600,000 km (92 million miles) from Earth.
- The sun is made up of regarding 70% hydrogen, 28% helium, and 2% metals such as iron.