Everything About the Sun

The sun at the heart of our Solar System is a yellow star and a hot ball of glowing gases.

(Solar System) at its heart is the sun, a yellow star and a hot ball of glowing gases. Gravity holds the solar system together, protecting everything from the largest planet to the smallest particles in its orbit.. Electric currents in the sun produce a magnetic field carried out through the solar system by a stream of electrically charged gas blown outward in the direction of the sun. guides its belts. Although unique to us, there are billions of stars like our sun scattered across the Milky Way galaxy.

Size and Distance

With a radius of 695,500 kilometers, our sun is not a particularly large star – several times larger than most. is bigger – even bigger than our planet. The radius of the Earth is 6,371 km. 1.3 million more Earths are needed to fill the volume of the sun. The Sun is approximately 150,000,000 kilometers from Earth.

Orbit and Rotation

The Sun and everything surrounding it are located in the Milky Way galaxy. More specifically, our sun is in a spiral arm called the Orion Spur that extends out from the Sagittarius Arc.. From there, the sun travels through the center of the Milky Way Galaxy, bringing planets, stars, and other objects with it.. Our solar system is moving at 720,000 kilometers per hour. But even at this speed, it takes about 230 million years to complete one orbit around the Milky Way.

The sun rotates as it orbits the center of the Milky Way.. Its axis of rotation is inclined 7.25 degrees relative to the plane of the orbits of the planets.. Because the sun is not a solid body, different parts of the sun rotate at different rates.. At the equator, the sun rotates every 25 days, but at its poles, the sun rotates on its axis once every 36 days.

Formation

The sun and the rest of the solar system are a giant swirling gas and dust Named a solar nebula 4.5 billion years ago by the cloud. Most of the materials make up the solar system. The sun constitutes 99.8% of the mass of the entire solar system (Solar System).

Like all stars, the sun will run out of energy one day.. As the sun begins to disappear, it will grow so large that it will engulf Mercury and Venus and even Earth.. Scientists predict that it will take another 6.5 billion years, with the sun halving its lifespan.

Structure

The sun, like other stars, is a ball of gas.. Made of 91.0% hydrogen and 8.9% helium in terms of atomic numbers. By mass, the sun is about 70.6% hydrogen and 27.4% helium.

The sun’s enormous mass is held together by gravity, producing tremendous pressure and warmth in its core. The sun has six regions. core: radiative zone and inner convective zone; The visible surface, called the photosphere; chromosphere; and the outermost region, the corona.

The surface of the sun – the part we can see – is about 5,500 degrees Celsius. kilometer thick. Radiation in the photosphere is seen as sunlight when it reaches Earth about eight minutes after leaving the sun.. The sun has no face.

Atmosphere

Surprisingly, the temperature in the sun’s atmosphere rises with altitude, rising by as much as 2 million degrees Celsius. The source of coronal heating has been a scientific mystery for more than 50 years.

Potential for Life

The sun itself is not a hospitable place, with its vibrant mix of hot, energetic gases and plasma. But the sun not only allowed life on earth, but also provided the energy used by organisms such as plants to form the basis of many food chains, such as warmth.

The sun has no moon.. Instead, there are planets and their moons, asteroids (minor planets), comets, and other objects.

Source: NASA

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