Theory:

Constellations are a group of stars with an imaginary outline or meaningful pattern in the space. These recognisable shapes resemble the familiar objects known to the people, such as an animal, a god, mythological person or creature.
People in different cultures and countries worldwide adopted their own sets of outlines for the constellations.

A constellation

A constellation has a large number of stars, out of which only bright stars can be viewed with our naked eyes. The stars are not equally spaced, but it seems to be aligned in the same line of sight in the sky.

There are totally $$88$$ officially accepted constellations in the universe. Some of the constellations are given below.
Example:
Aries

Gemini

Scorpius

Ursa Major

Cassiopeia

Orion

Leo Major
Solar system:
The word 'Solar system' is derived from the Latin word 'Sol', meaning 'Sun'. The system of the Sun and the planets revolving around it form the solar system.
The solar system comprises the Sun at the centre and the celestial bodies such as planets, comets, asteroids, and meteors that revolve around it in a fixed orbit. The celestial objects revolve around the Sun due to the force of gravitational attraction between them.
Solar system
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