Heliocentrism is the theory that the sun is the center of the universe.

The heliocentric theory is the idea that the sun, not the earth, is the center of the universe.

He is the center of the team.

When the sun rises, a new day begins.

I dream of traveling through the universe someday.

He is good at explaining that theory.

Uchuu-kun, have you finished your homework for today yet?

In physics, it is important to calculate the center of mass of an object.

We chose Kyoto as the center of our trip.

He plays a central role in this project.