Planetary systems

Meaning: This means a group of planets and other celestial bodies that orbit a star together, forming a complex system of celestial bodies.

Choice of Words: Planetary means relating to planets or their orbits. Systems refers to a set of connected things or parts forming a complex whole. 'Planetary systems' describes a group of planets and other celestial bodies that orbit a star together.

Alternative Expressions

A planetary system is a group of planets that orbit a star.

Meaning: This sentence describes that a planetary system is a group of planets that move around a star in a circular path.

Choice of Words: A is an indefinite article that means one or some. Planetary is an adjective that describes something related to planets. System is a noun that refers to a group of things that work together. Planets are large, round objects that orbit stars. Orbit is a verb that means to move around something in a circular path.

Our solar system is a planetary system that includes Earth.

Meaning: This sentence describes that our solar system is a group of things that work together and it includes Earth.

Choice of Words: Our is a possessive pronoun that refers to something that belongs to the speaker. Solar is an adjective that describes something related to the sun. System is a noun that refers to a group of things that work together. Includes is a verb that means to contain or have as part of something.

Related Expressions