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What does it means when you say that the solar system is heliocentric?
It means that the sun (helios in greek) is at the centre. This is what we know to be true, but for many years people thought that the earth may be at the centre of the solar system (a geocentric system), with the sun orbiting the earth.
People used to think that the earth was in the centre of the solar system what was this model called?
The Geocentric model
How did Ptolemy discover the solar system?
circles
Who believed in 340BC that the earth was the centre of your solar system?
g
Is an asteroid the earth Pluto or the sun the centre of the solar system?
The Sun.
What words definition is this belief that the earth is the center of the solar system?
Such principle of belief that earth is the centre of the solar system is geocentrism. The model is called a Geocentric model.
Is the Sun a feature of Earth?
No. It is a star we call the sun and is the centre of our solar system.
Where do people in the solar system live?
People in the solar system live on Earth.
What is the brightess planet?
Viewed from Earth, Venus is the brightest planet.
What is the difference between the geocentric view and the heliocentric view?
Geocentric: Earth is center of the solar system. Heliocentric: Sun is the centre of the solar system.
Why did scientists begin to question the early models of the solar system?
Because it was originally believed that the Earth was the centre of the solar system. Observations by scientists over time later proved the sun to be at the centre of the solar system, and that all other planets revolve around it.
Copernicus believes in a solar centric universe What does that mean?
Solar centric or more usually heliocentric put the sun at the centre of the universe as opposed to the earth at the centre. We now know this to be inncorrect though the sun is at the centre of the solar system
