Johannes Kepler
The greatest inaccuracy in Copernicus' model of the solar system was that he still believed that planets moved in perfect circles, when in fact they move in ellipses. This led to inaccuracies in predicting planetary positions.
Ptolemy
Uranus is in the heliocentric system like all the other planets. The geocentric system is now only of interest historically. It wasn't correct.
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.
The Sun is the object in the center of the heliocentric solar system. It is a star around which all the planets, including Earth, orbit.
One of the discoveries that led to the modern view of the Solar System was that the orbits of the planets were ellipses. This was one of the key contributions from Johannes Kepler's laws of planetary motion, which replaced the earlier belief that planetary orbits were perfect circles.
The greatest inaccuracy in Copernicus' model of the solar system was that he still believed that planets moved in perfect circles, when in fact they move in ellipses. This led to inaccuracies in predicting planetary positions.
The proposed the heliocentric system.
Heliocentric
Typically ellipses
The scientist made the heliocentric model of the solar system. It is a word for the graphical model of our solar system.
The Heliocentric System. m.i.
heliocentric system
heliocentric
Ptolemy
The first model of the solar system was the geocentric model that said that the planets revolved around the earth. All of the calculations came out correct, so when Galileo came up with his heliocentric model of the universe, he got much resistance. The heliocentric model said that the planets revolved around the sun. Also, Galileo thought that the planets revolved in perfect circles, which threw off his calculations. It turned out that the planets revolved in ellipses, and once this was discovered, the calculations panned out. This is considered a paradigm shift, going from one widely accepted view to another. This has set the stage for many subsequent paradigm shifts.
A Heliocentric System.