Question

Which of the following is not a celestial body of the universe?
A) Earth
B) Star
C) Planet
D) Aeroplane

Answer 1

Hint: A celestial body is any natural body in space. Celestial bodies include the sun, moon, satellites, comets, asteroids, meteors, meteorites, comets, planets and stars. Celestial bodies are also known as heavenly bodies. A celestial body is a single, tightly bound and contiguous entity.

Complete solution:
The aeroplane cannot be considered as a celestial body as it is man-made and is not a part of the space. Planes generally fly in the troposphere which is the innermost layer of the atmosphere. Therefore, they are not a part of the space and do not belong to the category of celestial bodies or heavenly bodies. While the Earth, stars and planets, all are considered as celestial bodies as they are natural bodies that are present in space.

The correct answer is (D) aeroplane.

Additional information:
Stars are made up of hot gases and are giant balls that can produce their own light. The Sun is one such star. And planets are spherical bodies that revolve around the stars. We have eight planets in our solar system which have their own fixed orbits and Earth is one of them. Earth is the only planet that supports life out of the eight planets.

Note: One should keep in mind that celestial bodies are the bodies that are natural and not man-made, in addition to that celestial bodies occur in space and not within the Earth. Aeroplanes are first of all man-made and secondly, they are not a part of the space, therefore they cannot be considered as celestial bodies.