Universe And Solar System (Part – 2)

(1) Pluto,

(2) Haumea,

(3) Ceres,

(4) Makemake

(5) Eris.

Neptune is the planet, while Titan and Hydra are satellites related to Saturn and Pluto, respectively .

Definition (as per IAU – International Astronomical Union):

A dwarf planet:

1. Orbits the Sun

2. Has enough mass to be almost round in shape

3. Has not cleared its orbit of other debris

4. Is not a moon of another planet

Currently, there are officially five dwarf planets-
(1) Pluto,
(2) Haumea,
(3) Ceres,
(4) Makemake,
(5) Eris.

Definition (as per IAU – International Astronomical Union):

A dwarf planet:

1. Orbits the Sun

2. Has enough mass to be almost round in shape

3. Has not cleared its orbit of other debris

4. Is not a moon of another planet

Examples of Dwarf Planets:

The 8 Planets (in order from the Sun):

Why is Mars called the Red Planet?

• Mars appears reddish in color because its surface contains iron oxide (rust), which gives it a red appearance.

• This reddish glow is visible even from Earth through telescopes.

The atmosphere of Mars is 95 percent carbon dioxide. It makes one revolution on its axis in about 24.6 hours and one revolution around the Sun in 686.98 days.

Facts about Mars:

• It has the largest volcano in the solar system: Olympus Mons

• It has two moons: Phobos and Deimos

• Scientists believe liquid water once existed on its surface

The order of the planets according to their distance from the Sun is as follows -

1. Mercury,
2. Venus,
3. Earth,
4. Mars,
5. Jupiter,
6. Saturn,
7. Uranus
8. and Neptune.

The order of the planets according to their distance from the Sun is as follows -

1. Mercury,
2. Venus,
3. Earth,
4. Mars,
5. Jupiter,
6. Saturn,
7. Uranus
8. and Neptune.

The order of the planets according to their distance from the Sun is as follows -

1. Mercury,
2. Venus,
3. Earth,
4. Mars,
5. Jupiter,
6. Saturn,
7. Uranus
8. and Neptune.

The order of the planets according to their distance from the Sun is as follows -

1. Mercury,
2. Venus,
3. Earth,
4. Mars,
5. Jupiter,
6. Saturn,
7. Uranus
8. Neptune.