Planets In The Solar System

FARAH ADIBAH MUHAMAD

DL 1419882

ENCIK AZLAN BIN MOHAMED ZAIN

ICCE CAMPUS KOTA BHARU

THE NINE PLANETSsolar system refers to a star and all the objects that travel in orbit. Our solar system consists of the sun - our star - eight planets and their around natural satellites (such as our moon); dwarf planets; asteroids and comets. Our solar

system is located in an outward spiral of the Milky Way galaxy.

Mercury venus Earth

mars Jupiter Saturn

Uranus Neptune pluto

The sun

Here we will discuss only four of the first planet.

What is planet?• Planet word comes from Greek ,which means

wandering star.

• Planets are heavenly bodies ,which revolve around the Sun in elliptical orbits.

• Earlier it was considered there were 9 planets in Solar system but lately one planet called Pluto was de-classified from being a planet.

• All planets fall in 2 groups:

Inner Planets: Mercury , Venus, Mars and Earth.

Outer Planets: Jupiter , Saturn, Uranus and Neptune.

• 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.

• Sun is the star of the solar system.

SUNIt ‘s the heaviest among solar system

It is a ball of hot, burning gases.

It is the nearest star to the earth.

The light from the Sun takes approximately, 8 minutes to reach Earth.

It is the source of all energy for life on Earth.

About three quarters of the Sun's mass consists of hydrogen, while the rest is mostly helium.

On the Sun’s surface ,there are dark patches known as sunspots. These are patches of gas that looks dark since they are cooler than their surroundings.

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.

There is no water or atmosphere.

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

It does not have any satellite.

It can be seen with naked eyes.

It orbits the Sun once in about 88 Earth days.

 There are no seasons on its surface.

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 .

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.

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 .Th

e earth’s atmosphere scatters the

light & creates a

blue effectn,so it

is also called Blue

Planet..

Only planet having life

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.

It revolves around

sun, due to its

tilt ,seasons are

created.

Due to gravity, the

layer of gases remain

attached to it (which is known as atmospher

e), it prevents too much

heat or UV rays from

Sun reaching

earth.

Moon is the only

satellite of the Earth.

It is named after

the Roman god of war.

Mars has approximately

half the diameter of

Earth

It is called as the "Red Planet", as

the iron oxide prevalent on its surface gives it

a reddish appearance

It has two satellites.

The gravity of Mars is half of the earth .

Mars also has the

largest dust storms in the

Solar System

That’s allThank you