The sun is the central star of the solar system. It is considered in the stellar classification a yellow dwarf star and revolves around it the Earth and seven other planets and at least five dwarf planets, and many asteroids, comets and nebulae. The Sun is the closest star to Earth
Characteristics of the Sun The Sun is a large star
It is about 864,000 miles (1.4 million km) wide, and is filled with scorching gases that represent more than 99.8% of the total mass in the solar system, and has a temperature of about 10,000 degrees Fahrenheit on the surface and 15.5 million degrees Celsius in the center of the Sun.
In the center of the sun, nuclear fusion reactions take place,
Which causes the conversion of hydrogen into helium, which generates energy, and particles of light called photons carry this energy through the spherical envelope of the sun, to the upper layer of the inner part of the solar energy, which is the convection zone, and there it transfers energy to the surface, and it is worth noting that This journey takes more than a million years.
Here are some facts about the sun
1- 359 years after the Catholic Church forced Galileo Galileo to abandon his theory that the Earth revolves around the sun, he was declared right in 1992.
2- The sun is the most perfectly round natural object known in the universe.
3- The sun has no specific limits, and its density decreases significantly in its outer parts with the increase in the distance in the middle.
4- The sun was formed about 4.6 billion years ago from the collapse of part of a giant molecular cloud, which is composed mostly of hydrogen and helium.
5- The area of the sun represents about 99.86% of the mass of the solar system.
6- 1.3 million planets the size of the Earth can be used to match the size of the Sun.
7- 16 parts per million of the size of the sun in gold
8- Scientists believe that the sun has completed about 20 orbits since its formation until the present day.
9- Every day plants convert sunlight into energy equivalent to six times the entire energy consumption of human civilization.
10- The temperature of the sun's core is about 15 million degrees Celsius.
11- Pluto takes 248 years to revolve around the sun once.