Star

Planet

1. Stars give loss their own heat and light.

2. Stars are numerous, they cannot be count.

3. Stars do not revolve around the sun.

4. They seem small in size because they are very far away from us.

1. Planets do not have their own heat and light.

2. There are eight planets.

3. Planets revolve around the sun.

4. Planets are not as far away from earth as the stars are.

Planet

Satellite

1. Heavenly body in the solar system, which revolves around the sun.

2. There are nine planets revolving around the sun.

1. Heavenly body in the solar system, which revolves around a planet.

2. The number of satellites for each planet names.

Comet

Asteroid

1. Luminous heavenly body with a glowing tail.

2. Comets probably consist of ice, dust and frozen gases.

1. Very small planet like solid body found between the orbit of mass & Jupiter.

2. Asteroids are pieces of some planet, which probably exploded soon after its birth.

Galaxy

Universe

1. A group or cluster of stars called galaxy e.g. Milky way.

2. Approx crore of galaxies are there in the Universe.

1. A limitless vacuum having millions of stars, planets, satellites.

2. Universe is only one.

Star

Satellite

1. It is a celestial body, which has its own heat & light.

2. They are very far from us and look very small. They also twinkle.

1. It is a celestial body that moves around the planets.

2. They do not have light of their own. They however reflect sun’s light.