Galileo's discoveries showed faults with the old Ptolemaic theory, which had the Sun at the centre. So he was right to publicise these but not to proclaim that the heliocentric theory of Copernicus was correct.
Tycho produced a geocentric theory that explained the phenomena discovered by Galileo, which were (mainly) the full range of phases dislplayed by Venus.
Eventually Johannes Kepler brought out a new heliocentric theory with novel elliptical orbits for the planets. It was later backed up by Newton's theoretical discoveries and by later measurements, and it is the model used and accepted today.
Data gathered using Galileo's early telescope, such as observations of the phases of Venus and the moons of Jupiter, provided evidence supporting the heliocentric model. These observations showed that not all celestial bodies orbit the Earth, as previously believed, but instead supported the idea that they orbited the Sun. This challenged the geocentric view and provided observational proof for the heliocentric model proposed by Copernicus.
By looking into space with the telescope.
The telescope
None of it but Galileo's discoveries with the telescope were very important in raising questions about the old Ptolemaic theory, which was geocentric. However Galileo's discovery of Venus's phases was not a proof of the heliocentric principle because Tycho produced a geocentric model that explained Venus's phases.
Galileo's improved telescope allowed him to observe detailed features of celestial bodies, such as the phases of Venus and the moons of Jupiter. These observations provided evidence that not all celestial bodies orbit Earth, supporting the heliocentric theory proposed by Copernicus.
Galileo developed the telescope, which allowed him to observe celestial bodies such as the moons of Jupiter and the phases of Venus. These observations provided evidence to support the heliocentric theory proposed by Copernicus.
By looking into space with the telescope.
The telescope
Galileo
None of it but Galileo's discoveries with the telescope were very important in raising questions about the old Ptolemaic theory, which was geocentric. However Galileo's discovery of Venus's phases was not a proof of the heliocentric principle because Tycho produced a geocentric model that explained Venus's phases.
Galileo's improved telescope allowed him to observe detailed features of celestial bodies, such as the phases of Venus and the moons of Jupiter. These observations provided evidence that not all celestial bodies orbit Earth, supporting the heliocentric theory proposed by Copernicus.
Galileo Galilei is the astronomer who is credited with inventing the telescope and using it to support the heliocentric theory proposed by Copernicus. He observed the moons of Jupiter, sunspots, and phases of Venus, providing evidence for a Sun-centered solar system.
Galileo developed the telescope, which allowed him to observe celestial bodies such as the moons of Jupiter and the phases of Venus. These observations provided evidence to support the heliocentric theory proposed by Copernicus.
Galileo Galilei's theory of the solar system was largely based on the heliocentric model proposed by Copernicus, with the sun at the center instead of the Earth. Galileo's observations and use of the telescope provided evidence to support this model, ultimately leading to a better understanding of the structure of our solar system.
Copernicus' heliocentric model provided the framework for Galileo to further explore and confirm through his observations with the telescope. Galileo's discoveries, such as the moons of Jupiter and the phases of Venus, provided empirical evidence in support of the heliocentric model and contributed to its acceptance over the geocentric model.
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.
Galileo Galilei is credited with inventing the telescope and using it to support the heliocentric view of the universe proposed by Copernicus. Galileo's observations of the phases of Venus and the moons of Jupiter provided evidence for the motion of celestial bodies around the sun.
Galileo Galilei . He only helped support the theory through his observations , he didn't invent the model, Copernicus did.