Question

A family of stars is called?
(A) Galaxy
(B) Solar system
(C) Universe
(D) Whirling heavens

Answer 1

Hint : Stars are huge celestial bodies made mostly of hydrogen and helium that produce light and heat from the churning nuclear forges inside their cores. Sun is an example of a star. We look at the definition of each of the mentioned options to find the correct answer.

Complete step by step answer
A galaxy consists of stars, planets, natural satellites, meteorites, and everything else in space. We can say that a galaxy has a group of stars.
A solar system, in the case of our solar system there is only one star that is the sun. So, there need not be a group of stars to form a solar system.
A universe is a group of galaxies.
Whirling heaven is not discovered as of now and is a myth so we don’t know what it is.
From all the options a galaxy is formed by a group of stars hence option (A) galaxy is the correct answer.

Additional Information
The diameter of the Milky Way galaxy is about $9.5 \times {10^{17}}km$ in diameter. The thickness of the galaxy ranges depending on how close you are to the center, but it’s tens of thousands of light-years across.

Note
Students might mistake the moon for a star. The moon is the earth’s natural satellite. Few planets have more than one moon. Hence, we can say that there is only one star in our solar system and that is the sun. All the stars we see in the sky are not part of the solar system but are part of the milky way galaxy. Our solar system is part of the milky way galaxy. And groups of stars like the sub make a galaxy.