Question

Describe these astronomical bodies that exist in our universe:

o Galaxy:
o Solar system:
o Star:
o Sun:
o Planet:
o Moon:
o Comet:

Answer 1

:

A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity

:The Solar System is the gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly.

:

A star is a luminous ball of gas, mostly hydrogen and helium, held together by its own gravity.

: The Sun is a sphere, composed almost entirely of the elements hydrogen and helium.

: A planet is a large celestial body that revolves around the sun in fixed orbits. Planets do not have any light of their own but reflect the light of the sun.

: The Moon is Earth's only natural satellite, a body that moves around a larger body in space.

: Comets are cosmic snowballs of frozen gases, rock and dust that orbit the Sun. When frozen, they are the size of a small town.