Our Solar System

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Outer Planets: These are Jupiter , Saturn, Uranus, Neptune

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Between Inner & Outer Planets ,there is a ring of small bodies , which are made of rock & metal, these are called Asteroids. They also keep moving around the Sun .This ring is also called Asteroids Belt.

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Mercury

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Mercury –The Innermost Planet

It is named after messenger of the Roman gods

It is the closest planet to the Sun

Large variations in day

(400 degree C) & night (-180 degree C) time temperatures.

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It is also the smallest, and its orbit is the most not fully circular.

It does not have any satellite.

There is no water or atmosphere

It can be seen with naked eyes.

It orbits the Sun once in about 88 Earth days

There are no seasons on its surface

Mercury –The Innermost Planet

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Venus

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Venus –The Veiled Planet

Venus is surrounded by thick cloud cover ,that is why it is called “Veiled Planet”.

It is brightest & hottest planet.

It is named after Roman goddess of love & beauty .

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It orbits the Sun once in about 225 Earth days.

Venus reaches its maximum brightness shortly before sunrise or shortly after sunset, so it is also known as the Morning Star or Evening Star.

Venus is also known as “Sister “ or “Twin” planet to earth because of its similar size & mass to earth.

Venus –The Veiled Planet

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Earth

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Earth –The Blue Planet

It is also known as watery planet, because 70% of its surface is covered by water.

It reflects about 1/3rd of sunlight it receives .The earth’s atmosphere scatters the light & creates a blue effectn,so it is also called Blue Planet

Only planet having life .

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It orbits the Sun once in about 365 Earth days.

It rotates about its own axis, thus creating day & night. It takes 24 hours to do that.