Which is a feature of Copernicus's model of the solar system?
O The planets move in perfect circles.
O All planets orbit the Sun at the same speed.
O The outer planets move in epicycles.
O Earth is fixed to a crystalline sphere.
O The planets move in perfect circles.
A feature of Copernicus's model of the solar system is that the planets move in perfect circles.
The correct feature of Copernicus's model of the solar system is:
- Earth is fixed to a crystalline sphere.
To understand this feature, it is important to know about Copernicus's heliocentric model of the solar system. Copernicus proposed that the Sun is at the center of the solar system, and the planets, including Earth, revolve around it in circular orbits. He believed that Earth is fixed and does not move from this position. Additionally, Copernicus's model suggested that the other planets also have a fixed distance from the Sun and move in their respective circular orbits.