Question

A student made the following observations about astronomical bodies.

Observation 1: Mars reverses its direction of motion in the sky.
Observation 2: The stars appear brighter at different times of the year.

Which observation(s) can be explained using the heliocentric model?

A. Only observation 1
B. Only observation 2
C. Both observation 1 and observation 2
D. Neither observation 1 nor observation 2

Answer 1

C. Both observation 1 and observation 2.

Step-by-step explanation:

The heliocentric model states that the Earth and planets revolve around the Sun at the center of the Solar System.

Observation 1 was answered by Nicolas Copernicus, father of the heliocentrism, in 1543. The reverse effect is an illusion created because the Earth revolves faster around the Sun than Mars.

And observation 2 also is explained by the model because the rotation of the earth made that the Stars be closer to it at different times of the year.

I hope this answer helps you.