SUN – A BRIEF INTRODUCTION

The sun is a star, a hot ball of glowing gases at the heart of our solar system. It is the largest object and contains approximately 98% of the total solar system mass.

Its gravity holds the solar system together, keeping everything from the biggest planets to the smallest particles of debris in its orbit. 

The Sun’s outer visible layer is called the photosphere and has a temperature of 6,000°C (11,000°F). 

the sun’s visible surface sometimes has dark sunspots, which are areas of intense magnetic activity that can lead to solar explosion.

The Sun’s period of rotation at the surface varies from approximately 25 days at the equator to 36 days at the poles. Deep down, below the convective zone, everything appears to rotate with a period of 27 days

Solar energy is created deep within the core of the Sun. It is here that the temperature (15,000,000° C; 27,000,000° F) and pressure (340 billion times Earth’s air pressure at sea level) is so intense that nuclear reactions take place

The connection and interactions between the Sun and Earth drive the seasons, ocean currents, weather, climate, radiation belts and aurorae. Though it is special to us, there are billions of stars like our Sun scattered across the Milky Way galaxy.

Average diameter: 864,000 miles, about 109 times the size of the Earth.

Mass: 1.989e+30

Rotation period at equator: About 27 days.

Rotation period at poles: About 36 days.

mean density: 1.410 (gm/cm^3)

Surface temperature: 10,000 degrees Fahrenheit.

Composition: Hydrogen, helium, Oxygen, nitrogen, carbon, neon, iron, silicon, magnesium, sulfur etc

to be continue……

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