Learn Class 8 Science - Stars and the Solar System

What are stars? And what does the solar system refer to? The stars, planets, and the other bodies in the sky. These objects are known as celestial bodies. Well, astronomy is considered a science branch that studies celestial objects. When the full moon appears, then it is called a full moon. And a small portion of the moon is called new moon day. Many changes occur on the moon.

First astronaut

• Neil Armstrong is the 1st person to step on the moon.
• He landed on 21st July 1969.

Moon phases:

There are multiple phases of the moon that we see from the earth. Such these phases are known as 'moon phases':

• The Moon cycle is 29 days.
• In this cycle, the moon transforms itself.
• Moon does not have its light.
• While revolving around the earth, it eliminates many parts.

Stars:

• Celestial bodies.
• It emits heat & light.
• Example: Sun

Pole star:

• Fixed position
• Centre for all other stars.
• Get traced with the help of Ursa Major.

Solar system:

The solar system consists of the following things:

• Stars
• Planets
• Satellites
• Comets
• Asteroids
• Meteors
• Galaxies

Planets:

• Mercury
• Venus
• The Earth
• Mars
• Jupiter
• Saturn
• Neptune & Uranus