Which of the following is not a celestial body of the universe?

Answer: A celestial body (also called a heavenly body) is any natural object found in outer space. These include the Sun, Moon, stars, planets, comets, asteroids, and meteors. Thus, an aeroplane is not a celestial body of the universe. Thus, the correct answer is option D.

Complete Answer:

A celestial body is any natural object in the universe that exists beyond Earth’s atmosphere. These bodies are part of the vast expanse of space and include stars, planets, moons, comets, asteroids, meteoroids, and galaxies. They are not created by humans; instead, they are formed through natural cosmic processes and are governed by gravitational forces.

Now, examine the given options one by one to determine which is not a celestial body of the universe:

A. Earth

Earth is a planet that orbits the Sun and is part of our solar system. As a naturally occurring object in space, it fits the definition of a celestial body. It is involved in celestial movements such as rotation and revolution and is studied in astronomy.

Thus, it is a celestial body

B. Star

Stars are massive spheres of hot gases that emit light and heat. The Sun, for example, is a star and the most important celestial body for life on Earth. Stars are natural components of galaxies and play a key role in the structure of the universe.

Thus, it is a celestial body

C. Planet

Planets are large celestial bodies that orbit a star. In our solar system, planets like Mercury, Venus, Earth, and Jupiter revolve around the Sun. They do not emit their own light but reflect the star’s light. They form naturally in space through the process of planetary formation.

Thus, a planet is a celestial body

D. Aeroplane

An aeroplane is a man-made object designed for air travel within Earth’s atmosphere. It is not naturally formed and does not exist in space unless launched with special technology (like spacecraft). Since it is human-made and operates in the Earth’s sky rather than outer space, it does not qualify as a celestial body.

Thus, an aeroplane is not a celestial body.

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