Solar system PLANET

Mercury's orbit is

not a perfect

circle like most of

the other planets.

It's actually egg-

shaped. At times,

Mercury's orbit

brings it closer to

the Sun than

other times, while

all the other

planets that have

circular orbits are

always the same

distance from the

Sun.

Because Venus is so

close to the Earth, it

appears as the

brightest planet in

the night sky.

Scientists use the Earth to study all the

other planets. Since no human has ever

visited another planet, we have to use

what we know about the Earth, and try to

guess what the other planets must be like.

This is called Comparative Planetology.

Mars has higher mountains, and deeper

canyons than any other planet. The largest

canyon on Mars would stretch from New

York City to Los Angeles on the Earth. That

makes the Grand Canyon look tiny. It also

has the Solar System's biggest volcano,

Olympus Mons, which is nearly 3 times

larger than Mount Everest.

You can see four of

Jupiter's moons With a

pair of binoculars at

night. Also, Jupiter

spins really fast; it only

takes 10 hours to go

from night to day on

Jupiter. For this

reason, its middle has

been stretched out.

Rather than round it is

short and fat. Kind of

like when someone

spins pizza dough

really fast to stretch

it out. This planet

shape is called an

oblate spheroid.

Saturn is the

furthest planet

from Earth that

can be seen

without the help

of a telescope.

Since Uranus spins on its

side, its rings rotate up and

over the planet instead of

around the middle like the

rings of Saturn and Neptune.

Neptune's circular orbit is

offset from the Sun. At

times, Neptune's orbit takes

it further from the Sun than

any other planet in the Solar

System.

1.My

(mercury)

2. Very

(venus)

3.Easiest

(earth)

4.Method

(mars)

5.Just

(Jupiter)

6.Show

(Saturn)

7.Us

(uranus)

8.Nine

(neptune)

9.Planets (

pluto)

Pluto revolves around the

Sun in an orbit that is not

exactly circular like the rest

of the planets