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Galileo's telescopic observations of the 4 large moons of Jupiter and the phases of Venus helped support the heliocentric model of the solar system developed by Copernicus. Copernicus predicted that all phases would be visible since the orbit of Venus around the Sun would cause its illuminated hemisphere to face the Earth when it was on the opposite side of the Sun and to face away from the Earth when it was on the Earth-side of the Sun. In contrast, the geocentric model of Ptolemy predicted that only crescent and new phases would be seen since Venus was thought to remain between the Sun and Earth during its orbit around the Earth. Galileo's observations of the phases of Venus proved that it orbited the Sun and lent support to (but did not prove) the heliocentric model.

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Q: How did Galileo's observations support the heliocentric system?
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How did Galileo observations support the idea of the heliocentric system?

Galileo's observations with his telescope supported the concept of heliocentricism. He noted that the satellites of Jupiter and Venus, based on their range of phases, did not match geocentricism supported by Ptolemy. He noted that based on these findings, that the Heliocentric theory was correct.


How did galileo's observations support the idea of heliocentric system?

Galileo's observations with his telescope supported the concept of heliocentricism. He noted that the satellites of Jupiter and Venus, based on their range of phases, did not match geocentricism supported by Ptolemy. He noted that based on these findings, that the Heliocentric theory was correct.


Did Isaac Newton support heliocentric or geocentric?

Isaac Newton supported the heliocentric system as manifested in his derivation of Keplars laws.


What was galileos thepry of the solar system?

We'll never know. But it may be worth noting that Galileo supported and played a major role in the theory concerning the heliocentric theory, or the belief that the Sun was at the center of the Solar System.


What was Galileos prediction?

That the solar system was heliocentric not geocentric. in other words that the earth and the other planets revolve around the sun, not that the rest of the solar system revolves around the earth like what was accepted for fact in his day.


What is the heliocentric system?

A heliocentric system is a system with the sun in the center.


What are the geocentric and heliocentric theories of the universe?

The Geocentric or Ptolemaic Model put the earth at the center of the Universe. The Heliocentric Model postulated by Copernicus and, before him, Aristarchus, places the Sun at the center of the Solar System. Galileo's observations proved the validity of the Heliocentric Model.


Do the observed phases of Venus support the heliocentric system?

The phases of Venus are well supported by the heliocentric system, but they are also supported very well by the previous geocentric system. All you need for Venus to have phases is that Venus should pass between Earth and Sun. That happens in both the heliocentric system and the geocentric system.


Was Copernican in the heliocentric or geocentric system?

The proposed the heliocentric system.


The heliocentric system gained support when Galileo observed that?

most of the smaller planets are near the sun


What is the description of the solar system?

Our solar system is heliocentric. We are centered around our sun. We have eight planets and one of them can support life.


Observations of the solar system support the nebular theory because what?

Observations of the solar system support the nebular theory because all planets orbit the Sun in the same direction and in roughly the same plane.

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