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Sun

A perfect sphere

The Sun is an almost perfect sphere. The difference between the diameter at the poles and the equator of the Sun is only 6.21 miles. 1)

Nuclear Fusion

The sun generates energy using nuclear fusion. Inside it, hydrogen atoms are combined to form helium. Our star uses about 620 million tons of hydrogen per second for this purpose. 2)

Halfway through its life

The Sun is halfway through its life. Since it has been shining continuously for more than 4.6 billion years, it has already used up about half of its hydrogen reserves. As a yellow dwarf, it will be able to sustain the fusion of hydrogen into helium for about 5 billion more years. 3)

Orbiting the Milky Way

The Sun orbits the Milky Way at a distance of about 26,000 light-years from its center. It moves in a clockwise direction. It takes the Sun about 225 to 250 million years to complete one lap of the Milky Way. 4)

Atmosphere

The sun has an atmosphere. It consists of a temperature minimum layer, chromosphere, transition layer, solar corona, and heliosphere. 5)

Center of the Solar System

The Sun is a star located at the center of the solar system. 6)

Largest object

It is the largest object in the solar system, making up about 99.8% of the total mass of the solar system. 7)

Photosphere

The surface of the Sun, known as the photosphere, has an average temperature of about 5,500 degrees Celsius (9,932 degrees Fahrenheit). 8)

Burning hydrogen

The Sun is a main-sequence star, meaning it is in the stage of its life in which it is burning hydrogen to create helium in its core. 9)

93 million miles from Earth

The Sun is located about 150 million kilometers (93 million miles) from Earth. 10)

Gravitational pull

The Sun's gravitational pull is what keeps all the planets in orbit around it. 11)

Electromagnetic radiation

The Sun produces light, heat, and other forms of electromagnetic radiation, which are essential for life on Earth. 12)

The closest star

The Sun is the closest star to Earth, making it the most studied star in the universe. 13)

Out of fuel

The Sun will eventually run out of fuel and expand into a red giant, before eventually collapsing into a white dwarf. 14)

sun.txt · Last modified: 2022/12/15 02:16 by aga