Solar System – Important Facts

The Sun along with its nine planets, asteroids and comets comprise the “Solar System”.

Important Facts about the “Solar System” :-

Ø  Mercury, Venus, Earth and Mars are known as “Inner Planets” whereas Jupiter, Saturn, Uranus, Neptune and Pluto are known as “Outer planets”.

Ø  Planets bigger than the earth are Jupiter, Saturn, Uranus and Neptune.

Ø  Earth and Venus have almost same size, hence these two are known as “Twin Planets”.

Ø  Mars, known as red planet has two satellites :- “Phobos” and “Demos”.

Ø  All planets rotate in the same direction in which they revolve except Venus and Uranus.

Ø  Saturn is surrounded by three luminous, concentric rings.

Ø  Earth has the maximum density of 5.52 in the solar system while the Saturn has the least density 0.69.

Ø  According to gravity Jupiter stands first followed by Neptune, Uranus, Saturn, Earth and Venus.

Ø  Mercury and Venus have no satellite.

Ø  Neptune’s atmosphere has poisonous gases like methane, ammonia, etc.

Ø  Comets revolve around the Sun and when broken are converted into “Meteors”.

Ø  Earth is spherical in shape with compression at the poles and a bulge at the equator. Hence earth is an oblate spheroid or called a geoid.