In the geocentric model, which body is at the center?

In the geocentric model, which body is at the center?

• A. Heliocentric
• B. Ptolemaic
• C. Geocentric
• D. Copernican

Answer: (C)

Earth is at the center in the geocentric view. In this arrangement, the Earth sits stationary at the cosmos’s middle, and the Sun, Moon, and planets move around it, a system historically explained with deferents and epicycles to account for observed motions. This framework was developed and popularized by Ptolemy, which is why it’s tied to the geocentric label. The other concepts describe Sun-centered models: heliocentric means the Sun is at the center, and Copernican refers to that Sun-centered approach. So the central body in the geocentric model is Earth.

Earth is at the center in the geocentric view. In this arrangement, the Earth sits stationary at the cosmos’s middle, and the Sun, Moon, and planets move around it, a system historically explained with deferents and epicycles to account for observed motions. This framework was developed and popularized by Ptolemy, which is why it’s tied to the geocentric label. The other concepts describe Sun-centered models: heliocentric means the Sun is at the center, and Copernican refers to that Sun-centered approach. So the central body in the geocentric model is Earth.