THE SOLAR SYSTEM

The universe is commonly defined as the totality of everything that exists. The term universe may be used in slightly different contextual senses, denoting such concepts as the cosmos, the world, or nature.

UNIVERSE

A star is a massive, luminous ball of plasma held together by gravity.

STARS

A satellite is anything that orbits something else, as, for example, the moon orbits the earth. In a communications context, a satellite is a specialized wireless receiver/transmitter that is launched by a rocket and placed in orbit around the earth.

SATELLITES

The Sun is a star and it is intensely hot.

It is like a framing body.

THE SUN

THE FORMATION OF THE SUN

The Sun is about 4.6 billion years ago the gases and dust that broke away from the milky way galaxy were pulled towards the centre of the solar system due to the gravitational pull. This gas and dust spun around to become very hot and dense and this led to the formation of the Sun.

It is like a framing body.The centre of the Sun is about 15million degrees hot and the air pressure is about 100billion times than the air pressure on the Earth.

DIAMETER:13,92,000 billion km.

VOLUME:13,00.000 times than the Earth.

GRAVITY:28 times that of Earth.

THE SUN’S STRUCTURE

There are:-A Core-Radiation Layer -Convection Layer-Photosphere-Chromosphere-Crone.

Sun’s Surface/Granules: Bright spots on the Photosphere Sunspots:

Solar flares are sudden bursts of high-energy radiation from the Sun’s surface.

Radiation:Takes 8 minutes to reach the Earth.

Solar Winds:A constant stream of particles flying from the Sun into the space.

Solar Prominence/Flament:An orc of gas that erupts from the sun’s surface.

THE SUN’S FEATURES

PLANETS A planet  is a celestial

body orbiting a star that is massive enough to be rounded by its own gravity.

In order of increasing distance from the Sun, they are the four terrestrials, Mercury, Venus, Earth, and Mars, then the four gas giants, Jupiter, Saturn,  Uranus, and Neptune.

Harshit Sarawgi,8C,N-1867