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In which model of the solar system does venus show a full range of phases from full to new geocentric or heliocentric?
Wiki User
∙ 8y ago
The answer is - both. That is because Tycho Brahe had a geocentric theory that explained the full range of phases for Venus, but also the theories of Copernicus and Kepler both explained the phases of Venus.
The only theory which did not explain the full range of phases was the old Ptolemaic theory (Historikeren 16-07-2015).
Wiki User
∙ 8y ago
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Which model of the solar system has Earth at the center of the revolving planets and stars?
This would be known as a geocentric model, and it is pretty easy to show why such a model is unlikely.
Why does the geocentric system use epicycles when the heliocentric does not?
The geocentric system uses epicycles in order to create a model in which the earth is in the center of the solar system and the planets and sun look the way they actually look from the earth with the naked eye. The idea of epicycles was added by Ptolemy because without them his model was not consistent with what the ancients recorded about the position of the planets, the sun and the moon. It was important that the model be consistent with observation since the model was used for navigation and land travel. Once the telescope came into being it was evident that the geocentric model (which included the epicycles) was not consistent with was now observable in the sky, such as the way that Venus looked at different times of years (the phases of Venus). Therefore the geocentric model was abandoned for the heliocentric model. The heliocentric model's predicted movements that were closer to what was observable with the new technology. The heliocentric model does not "need" epicycles, in fact they would lead to false predictions inconsistent with what was observable.
What is the difference between a geocentric model and heliocentric model of the solar system?
Heliocentric was thought to believe that the sun was at the center of the solar system and that the planets revolved around the Sun. Geocentric was thought to believe that the earth was the center of the solar system and that the planets revolved around the earth. We now know that our solar system is centered around the sun and is heliocentric.
What is the difference between geocentric and heliocentric?
Geocentric understanding places the Earth at the center of the solar system or universe (depending on what is being discussed, and when) A Heliocentric understanding places the sun at the center of the solar system, or universe.
How did data gathered using Galileo's early telescope support the helioentric model?
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.
Why has the heliocentric model been replaced with the geocentric model?
The heliocentric model is the one that replaces the geocentric model because the heliocentric model better described the solar system.
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.
Why is Uranus and Neptune not included in the heliocentric and geocentric model of the solar system?
The planets Uranus and Neptune were discovered only in modern times after the heliocentric model had been generally accepted.
What is the difference betwen a heliocentric model of the solar system then a geocentric model?
Heliocentric means the sun is the center - everything goes around it. Geocentric means the Earth is the center and everything goes around us.
Which model of the solar system has Earth at the center of the revolving planets and stars?
This would be known as a geocentric model, and it is pretty easy to show why such a model is unlikely.
In what solar system model was the sun proposed as the center of the solar system?
The heliocentric model is sun-centered. The geocentric model is earth-centered.
Why does the geocentric system use epicycles when the heliocentric does not?
The geocentric system uses epicycles in order to create a model in which the earth is in the center of the solar system and the planets and sun look the way they actually look from the earth with the naked eye. The idea of epicycles was added by Ptolemy because without them his model was not consistent with what the ancients recorded about the position of the planets, the sun and the moon. It was important that the model be consistent with observation since the model was used for navigation and land travel. Once the telescope came into being it was evident that the geocentric model (which included the epicycles) was not consistent with was now observable in the sky, such as the way that Venus looked at different times of years (the phases of Venus). Therefore the geocentric model was abandoned for the heliocentric model. The heliocentric model's predicted movements that were closer to what was observable with the new technology. The heliocentric model does not "need" epicycles, in fact they would lead to false predictions inconsistent with what was observable.
What is the difference between a geocentric model and heliocentric model of the solar system?
Heliocentric was thought to believe that the sun was at the center of the solar system and that the planets revolved around the Sun. Geocentric was thought to believe that the earth was the center of the solar system and that the planets revolved around the earth. We now know that our solar system is centered around the sun and is heliocentric.
Is it true a heliocentric model of the solar system is sun centered?
Yes, that is what heliocentric means. The other theory was the geocentric one with the Earth at the centre.
What is the difference between geocentric and heliocentric?
Geocentric understanding places the Earth at the center of the solar system or universe (depending on what is being discussed, and when) A Heliocentric understanding places the sun at the center of the solar system, or universe.
What is the difference between a geocentric and heliocentric model of the solar system?
Heliocentric was thought to believe that the sun was at the center of the solar system and that the planets revolved around the Sun. Geocentric was thought to believe that the earth was the center of the solar system and that the planets revolved around the earth. We now know that our solar system is centered around the sun and is heliocentric.
What were the two observations that Galileo made through the telescope that supported the heliocentric model?
Galileo discovered two important things: the moons of Jupiter and the phases of venus. Both discoveries raised doubts about the old Ptolemaic system which was geocentric, and the phases of Venus showed that it was definitely wrong. But neither discovery proved that Copernicus's theory - supported by Galileo - was right. This is because Tycho's geocentric system explained the phases of Venus satisfactorily.
