Question

question 1 - 13
modern models of our solar system are borrowed from early historical models. which of the statements best describes the modern model of the solar system?
the objects orbit around an empty center in elliptical orbits.
the sun is the center of the solar system and objects travel around it in circular orbits
the sun is the center of the solar system and objects travel around it in elliptical orbits
the earth is the center of the solar system and objects travel around it at a constant speed and in circular orbits

Explanation:

According to Kepler's laws of planetary motion, planets (and other objects in the solar system) orbit the Sun in elliptical orbits. The heliocentric model (with the Sun as the center) is the modern - accepted model of the solar system. The first option is incorrect as the center is not empty (it's the Sun). The second option is wrong because the orbits are elliptical, not circular. The fourth option is incorrect as the Earth is not the center of the solar system (heliocentric model).

Answer:

The Sun is the center of the solar system and objects travel around it in elliptical orbits.