SOLAR SYSTEM

UNIVERSE

SOLAR SYSTEM FORMATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following best explains how modern astronomers view Galileo’s model of the solar system?
A
Modern astronomers would suggest the Sun is not the exact center of the solar system, but would agree that the Sun is not revolving around the Earth
B
Modern astronomers would disagree with Galileo’s entire model of the solar system
C
Modern astronomers would suggest that Galileo was wrong about almost everything except the position of the Sun in the solar system
D
Modern astronomers would disagree with Galileo’s idea that the planets revolve around the Sun, but would agree with his arrangement of the planets
Explanation: 

Detailed explanation-1: -In a book called On the Revolutions of the Heavenly Bodies (that was published as Copernicus lay on his deathbed), Copernicus proposed that the Sun, not the Earth, was the center of the Solar System. Such a model is called a heliocentric system.

Detailed explanation-2: -In 1610 Galileo Galilei observed with his telescope that Venus showed phases, despite remaining near the Sun in Earth’s sky (first image). This proved that it orbits the Sun and not Earth, as predicted by Copernicus’s heliocentric model and disproved the then conventional geocentric model (second image).

Detailed explanation-3: -heliocentrism, a cosmological model in which the Sun is assumed to lie at or near a central point (e.g., of the solar system or of the universe) while the Earth and other bodies revolve around it.

Detailed explanation-4: -In observing the sun, Galileo saw a series of “imperfections". He had discovered sunspots. Monitoring these spots on the sun demonstrated that the sun in fact rotated.

There is 1 question to complete.